Version history for TLS/SSL support in web browsers

Version history for TLS/SSL support in web browsers tracks the implementation of Transport Layer Security protocol versions in major web browsers.

TLS/SSL support history of web browsers
Browser
or OS API 		Version Platforms SSL protocols TLS protocols Certificate support Vulnerability[n 1] Protocol selection by user[n 2]
SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV[n 3][1] SHA-2[2] ECDSA[3] BEAST[n 4] CRIME[n 5] POODLE (SSLv3)[n 6] RC4[n 7] FREAK[4][5] Logjam
Google Chrome
(Chrome for Android)[n 8][n 9] 		1–9 Windows (10+)
macOS (11+)
Linux
Android (8.0+)
iOS (14+)
ChromeOS 		Disabled by default Yes Yes No No No Yes
(only desktop) 		Requires SHA-2 compatible OS[2] Needs ECC compatible OS[3] Not affected[10] Vulnerable
(HTTPS) 		Vulnerable Vulnerable Vulnerable
(except Windows) 		Vulnerable Yes[n 10]
10–20 No[11] Yes Yes No No No Yes
(only desktop) 		Requires SHA-2 compatible OS[2] Needs ECC compatible OS[3] Not affected Vulnerable
(HTTPS/SPDY) 		Vulnerable Vulnerable Vulnerable
(except Windows) 		Vulnerable Yes[n 10]
21 No Yes Yes No No No Yes
(only desktop) 		Requires SHA-2 compatible OS[2] Needs ECC compatible OS[3] Not affected Mitigated[12] Vulnerable Vulnerable Vulnerable
(except Windows) 		Vulnerable Yes[n 10]
22–29 No Yes Yes Yes[13] No[13][14][15][16] No Yes
(only desktop) 		Requires SHA-2 compatible OS[2] Needs ECC compatible OS[3] Not affected Mitigated Vulnerable Vulnerable Vulnerable
(except Windows) 		Vulnerable Temporary[n 11]
30–32 No Yes Yes Yes Yes[14][15][16] No Yes
(only desktop) 		Requires SHA-2 compatible OS[2] Needs ECC compatible OS[3] Not affected Mitigated Vulnerable Vulnerable Vulnerable
(except Windows) 		Vulnerable Temporary[n 11]
33–37 No Yes Yes Yes Yes No Yes
(only desktop) 		Requires SHA-2 compatible OS[2] Needs ECC compatible OS[3] Not affected Mitigated Partly mitigated[n 12] Lowest priority[19][20][21] Vulnerable
(except Windows) 		Vulnerable Temporary[n 11]
38, 39 No Yes Yes Yes Yes No Yes
(only desktop) 		Yes Needs ECC compatible OS[3] Not affected Mitigated Partly mitigated Lowest priority Vulnerable
(except Windows) 		Vulnerable Temporary[n 11]
40 No Disabled by default[18][22] Yes Yes Yes No Yes
(only desktop) 		Yes Needs ECC compatible OS[3] Not affected Mitigated Mitigated[n 13] Lowest priority Vulnerable
(except Windows) 		Vulnerable Yes[n 14]
41, 42 No Disabled by default Yes Yes Yes No Yes
(only desktop) 		Yes Needs ECC compatible OS[3] Not affected Mitigated Mitigated Lowest priority Mitigated Vulnerable Yes[n 14]
43 No Disabled by default Yes Yes Yes No Yes
(only desktop) 		Yes Needs ECC compatible OS[3] Not affected Mitigated Mitigated Only as fallback[n 15][23] Mitigated Vulnerable Yes[n 14]
44–47 No No[24] Yes Yes Yes No Yes
(only desktop) 		Yes Needs ECC compatible OS[3] Not affected Mitigated Not affected Only as fallback[n 15] Mitigated Mitigated[25] Temporary[n 11]
48, 49 No No Yes Yes Yes No Yes
(only desktop) 		Yes Needs ECC compatible OS[3] Not affected Mitigated Not affected Disabled by default[n 16][26][27] Mitigated Mitigated Temporary[n 11]
50–53 No No Yes Yes Yes No Yes
(only desktop) 		Yes Yes Not affected Mitigated Not affected Disabled by default[n 16][26][27] Mitigated Mitigated Temporary[n 11]
54–66 No No Yes Yes Yes Disabled by default
(draft version) 		Yes
(only desktop) 		Yes Yes Not affected Mitigated Not affected Disabled by default[n 16][26][27] Mitigated Mitigated Temporary[n 11]
67–69 No No Yes Yes Yes Yes
(draft version) 		Yes
(only desktop) 		Yes Yes Not affected Mitigated Not affected Disabled by default[n 16][26][27] Mitigated Mitigated Temporary[n 11]
70–83 No No Yes Yes Yes Yes Yes
(only desktop) 		Yes Yes Not affected Mitigated Not affected Disabled by default[n 16][26][27] Mitigated Mitigated Temporary[n 11]
84–90 No No Warn by default Warn by default Yes Yes Yes
(only desktop) 		Yes Yes Not affected Mitigated Not affected Disabled by default[n 16][26][27] Mitigated Mitigated Temporary[n 11]
91–129 No No No[28] No[28] Yes Yes Yes
(only desktop) 		Yes Yes Not affected Mitigated Not affected Disabled by default[n 16][26][27] Mitigated Mitigated Temporary[n 11]
ESC 130 131
Browser
or OS API 		Version Platforms SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV certificate SHA-2 certificate ECDSA certificate BEAST CRIME POODLE (SSLv3) RC4 FREAK Logjam Protocol selection by user
Microsoft Edge
(Chromium-based)
OS-independent 		79–83 Windows (10+)
macOS (11+)
Linux 
Android (8.0+)
iOS (14.0+) 		No No Yes Yes Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default Mitigated Mitigated Yes[n 10]
84–90 No No Warn by default Warn by default Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default Mitigated Mitigated Yes[n 10]
91-129 No No No[29] No[29] Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default Mitigated Mitigated Yes[n 10]
ESC 130 131
Browser
or OS API 		Version Platforms SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV certificate SHA-2 certificate ECDSA certificate BEAST CRIME POODLE (SSLv3) RC4 FREAK Logjam Protocol selection by user
Mozilla Firefox
(Firefox for mobile)[n 17] 		1.0, 1.5 Windows (10+)
macOS (10.15+)
Linux
Android (5.0+)
iOS (15+)
Firefox OS
Maemo

ESR 115 only for:
Windows (7–8.1)
macOS (10.12–10.14)

ESR 128+ only for:
Windows (10+)
macOS (10.15+)
Linux 		Yes[30] Yes[30] Yes[30] No No No No Yes[2] No Not affected[31] Not affected Vulnerable Vulnerable Not affected Vulnerable Yes[n 10]
2 Disabled by default[30][32] Yes Yes No No No No Yes Yes[3] Not affected Not affected Vulnerable Vulnerable Not affected Vulnerable Yes[n 10]
3–7 Disabled by default Yes Yes No No No Yes Yes Yes Not affected Not affected Vulnerable Vulnerable Not affected Vulnerable Yes[n 10]
8–10
ESR 10 		No[32] Yes Yes No No No Yes Yes Yes Not affected Not affected Vulnerable Vulnerable Not affected Vulnerable Yes[n 10]
11–14 No Yes Yes No No No Yes Yes Yes Not affected Vulnerable
(SPDY)[12] 		Vulnerable Vulnerable Not affected Vulnerable Yes[n 10]
15–22
ESR 17.0–17.0.10 		No Yes Yes No No No Yes Yes Yes Not affected Mitigated Vulnerable Vulnerable Not affected Vulnerable Yes[n 10]
ESR 17.0.11 No Yes Yes No No No Yes Yes Yes Not affected Mitigated Vulnerable Lowest priority[33][34] Not affected Vulnerable Yes[n 10]
23 No Yes Yes Disabled by default[35] No No Yes Yes Yes Not affected Mitigated Vulnerable Vulnerable Not affected Vulnerable Yes[n 18]
24, 25.0.0
ESR 24.0–24.1.0 		No Yes Yes Disabled by default Disabled by default[36] No Yes Yes Yes Not affected Mitigated Vulnerable Vulnerable Not affected Vulnerable Yes[n 18]
25.0.1, 26
ESR 24.1.1–24.8.1 		No Yes Yes Disabled by default Disabled by default No Yes Yes Yes Not affected Mitigated Vulnerable Lowest priority[33][34] Not affected Vulnerable Yes[n 18]
27–33
ESR 31.0–31.2.0 		No Yes Yes Yes[37][38] Yes[39][38] No Yes Yes Yes Not affected Mitigated Vulnerable Lowest priority Not affected Vulnerable Yes[n 18]
34, 35
ESR 31.3.0–31.7.0 		No Disabled by default[40][41] Yes Yes Yes No Yes Yes Yes Not affected Mitigated Mitigated[n 19] Lowest priority Not affected Vulnerable Yes[n 18]
ESR 31.8.0 No Disabled by default Yes Yes Yes No Yes Yes Yes Not affected Mitigated Mitigated Lowest priority Not affected Mitigated[44] Yes[n 18]
36–38
ESR 38.0–38.0.1 		No Disabled by default Yes Yes Yes No Yes Yes Yes Not affected Mitigated Mitigated Only as fallback[n 15][45] Not affected Vulnerable Yes[n 18]
ESR 38.1.0–38.8.0 No Disabled by default Yes Yes Yes No Yes Yes Yes Not affected Mitigated Mitigated Only as fallback[n 15] Not affected Mitigated[44] Yes[n 18]
39–43 No No[46] Yes Yes Yes No Yes Yes Yes Not affected Mitigated Not affected Only as fallback[n 15] Not affected Mitigated[44] Yes[n 18]
44–48
ESR 45 		No No Yes Yes Yes No Yes Yes Yes Not affected Mitigated Not affected Disabled by default[n 16][47][48][49][50] Not affected Mitigated Yes[n 18]
49–59
ESR 52 		No No Yes Yes Yes Disabled by default
(draft version)[51] 		Yes Yes Yes Not affected Mitigated Not affected Disabled by default[n 16] Not affected Mitigated Yes[n 18]
60–62
ESR 60 		No No Yes Yes Yes Yes
(draft version) 		Yes Yes Yes Not affected Mitigated Not affected Disabled by default[n 16] Not affected Mitigated Yes[n 18]
63–77
ESR 68 		No No Yes Yes Yes Yes Yes Yes Yes Not affected Mitigated Not affected Disabled by default[n 16] Not affected Mitigated Yes[n 18]
78–132
ESR 78–115.17
ESR 128.0–128.4 		No No Disabled by default[52] Disabled by default[52] Yes Yes Yes Yes Yes Not affected Mitigated Not affected Disabled by default[n 16] Not affected Mitigated Yes[n 18]
ESR 115.18
ESR 128.5
133
Browser
or OS API 		Version Platforms SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV certificate SHA-2 certificate ECDSA certificate BEAST CRIME POODLE (SSLv3) RC4 FREAK Logjam Protocol selection by user
Microsoft Internet Explorer
(1–10)[n 20]

Windows Schannel 		1.x Windows 3.1, 95, NT,[n 21][n 22]
Mac OS 7, 8 		No SSL/TLS support
2 Yes No No No No No No No No No SSL 3.0 or TLS support Vulnerable Vulnerable Vulnerable —
3 Yes Yes[55] No No No No No No No Vulnerable Not affected Vulnerable Vulnerable Vulnerable Vulnerable ?
4, 5, 6 Windows 3.1, 95, 98, NT, 2000[n 21][n 22]
Mac OS 7.1, 8, X,
Solaris, HP-UX 		Yes Yes Disabled by default[55] No No No No No No Vulnerable Not affected Vulnerable Vulnerable Vulnerable Vulnerable Yes[n 10]
6 Windows XP[n 22] Yes Yes Disabled by default No No No No Yes (Since SP3)[n 23][56] No Mitigated Not affected Vulnerable Vulnerable Vulnerable Vulnerable Yes[n 10]
7, 8 Disabled by default[57] Yes Yes[57] No No No Yes Yes (Since SP3)[n 23][56] No Mitigated Not affected Vulnerable Vulnerable Vulnerable Vulnerable Yes[n 10]
6 Server 2003[n 22] Yes Yes Disabled by default No No No No Yes
(KB938397+KB968730)[n 23][56] 		No Mitigated Not affected Vulnerable Vulnerable Mitigated[60] Mitigated[61] Yes[n 10]
7, 8 Disabled by default[57] Yes Yes[57] No No No Yes Yes
(KB938397+KB968730)[n 23][56] 		No Mitigated Not affected Vulnerable Vulnerable Mitigated[60] Mitigated[61] Yes[n 10]
7, 8, 9 Windows Vista Disabled by default Yes Yes No No No Yes Yes Yes[3] Mitigated Not affected Vulnerable Vulnerable Mitigated[60] Mitigated[61] Yes[n 10]
7, 8, 9 Server 2008 Disabled by default Yes Yes Disabled by default[62]
(KB4019276)[n 24] 		Disabled by default[62]
(KB4019276)[n 24] 		No Yes Yes Yes[3] Mitigated Not affected Vulnerable Vulnerable Mitigated[60] Mitigated[61] Yes[n 10]
8, 9, 10 7, 8
Server 2008 R2
Server 2012 		Disabled by default Yes Yes Disabled by default[n 24][64] Disabled by default[n 24][64] No Yes Yes Yes Mitigated Not affected Vulnerable Lowest priority[65][n 25] Mitigated[60] Mitigated[61] Yes[n 10]
Internet Explorer 11[n 20]

Windows Schannel 		11[n 26][67] 7, 8.1
Server 2008 R2
Server 2012[67]
Server 2012 R2 		Disabled by default Disabled by default[n 27] Disabled by default[n 28] Disabled by default[n 24][n 28] Yes[n 24][73] No Yes Yes Yes Mitigated Not affected Mitigated[n 27] Disabled by default[n 16] Mitigated[60] Mitigated[61] Yes[n 10]
Browser
or OS API 		Version Platforms SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV certificate SHA-2 certificate ECDSA certificate BEAST CRIME POODLE (SSLv3) RC4 FREAK Logjam Protocol selection by user
Microsoft Edge
(12–18)
(EdgeHTML-based)
Client only

Internet Explorer 11[n 20]

Windows Schannel 		11 12–13 Windows 10 1507–1511 Disabled by default Yes[63] Yes Yes Yes[n 24] No Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
11 14–18
(client only) 		Windows 10 1607–2004
Windows Server (SAC)
1709–2004 		No[74] Disabled by default Yes Yes Yes No Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Internet Explorer 11[n 20]

Windows Schannel 		11[n 29] Windows 10 20H2–21H2
Windows Server (SAC)
20H2 		No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes No Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows 10 22H2
Windows Schannel Windows 11 21H2 No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes Yes[63] Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows 11 22H2
(Home/Pro) 		No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes Yes Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows 11 22H2
(Ent/Edu)
Windows 11 23H2
(Home/Pro) 		No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes Yes Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows 11 23H2
(Ent/Edu)
Windows 11 24H2 No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes Yes Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Internet Explorer 11[n 20]
LTSB/LTSC

Windows Schannel
LTSB/LTSC 		11 Windows 10
LTSB 2015 (1507) 		Disabled by default Yes[63] Disabled by default[n 28] Disabled by default[n 28] Yes[n 24] No Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows 10
LTSB 2016 (1607) 		No[74] Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes No Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows Server 2016
(LTSB/1607) 		No[74] Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes No Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows 10
LTSC 2019 (1809)
Windows Server 2019
(LTSC/1809) 		No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes No Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows 10
LTSC 2021 (21H2) 		No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes No[63] Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows Server 2022
(LTSC/21H2) 		No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes Yes Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows Schannel
LTSC 		Windows 11
LTSC 2024 (24H2) 		No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes Yes Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Windows Server 2025
(LTSC/24H2) 		No Disabled by default Disabled by default[n 28] Disabled by default[n 28] Yes Yes Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated Yes[n 10]
Browser
or OS API 		Version Platforms SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV certificate SHA-2 certificate ECDSA certificate BEAST CRIME POODLE (SSLv3) RC4 FREAK Logjam Protocol selection by user
Microsoft Internet Explorer Mobile[n 20] 7–9 Windows Phone 7, 7.5, 7.8 Disabled by default[57] Yes Yes No[citation needed] No[citation needed] No No[citation needed] Yes Yes[77] ? Not affected Vulnerable Vulnerable Vulnerable Vulnerable Only with 3rd party tools[n 30]
10 Windows Phone 8 Disabled by default Yes Yes Disabled by default[79] Disabled by default[79] No No[citation needed] Yes Yes[80] Mitigated Not affected Vulnerable Vulnerable Vulnerable Vulnerable Only with 3rd party tools[n 30]
11 Windows Phone 8.1 Disabled by default Yes Yes Yes[81] Yes[81] No No[citation needed] Yes Yes Mitigated Not affected Vulnerable Only as fallback[n 15][82][83] Vulnerable Vulnerable Only with 3rd party tools[n 30]
Microsoft Edge
(13–15)
(EdgeHTML-based)[n 31] 		13 Windows 10 Mobile 1511 Disabled by default Disabled by default Yes Yes Yes No Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated No
14, 15 Windows 10 Mobile
1607–1709 		No[74] Disabled by default Yes Yes Yes No Yes Yes Yes Mitigated Not affected Mitigated Disabled by default[n 16] Mitigated Mitigated No
Browser
or OS API 		Version Platforms SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV certificate SHA-2 certificate ECDSA certificate BEAST CRIME POODLE (SSLv3) RC4 FREAK Logjam Protocol selection by user
Apple Safari[n 32] 1 Mac OS X 10.2, 10.3 No[88] Yes Yes No No No No No No Vulnerable Not affected Vulnerable Vulnerable Vulnerable Vulnerable No
2–5 Mac OS X 10.4, 10.5, Win XP No Yes Yes No No No Yes (Since v3.2) No No Vulnerable Not affected Vulnerable Vulnerable Vulnerable Vulnerable No
3–5 Vista, Win 7 No Yes Yes No No No Yes (Since v3.2) No Yes[77] Vulnerable Not affected Vulnerable Vulnerable Vulnerable Vulnerable No
4–6 Mac OS X 10.6, 10.7 No Yes Yes No No No Yes Yes[2] Yes[3] Vulnerable Not affected Vulnerable Vulnerable Vulnerable Vulnerable No
6 OS X 10.8 No Yes Yes No No No Yes Yes Yes[3] Mitigated[n 33] Not affected Mitigated[n 34] Vulnerable[n 34] Mitigated[94] Vulnerable No
7, 9 OS X 10.9 No Yes Yes Yes[95] Yes[95] No Yes Yes Yes Mitigated[90] Not affected Mitigated[n 34] Vulnerable[n 34] Mitigated[94] Vulnerable No
8–10 OS X 10.10 No Yes Yes Yes Yes No Yes Yes Yes Mitigated Not affected Mitigated[n 34] Lowest priority[96][n 34] Mitigated[94] Mitigated[97] No
9–11 OS X 10.11 No No Yes Yes Yes No Yes Yes Yes Mitigated Not affected Not affected Lowest priority Mitigated Mitigated No
10–15 macOS
10.12, 10.13,
10.14, 10.15 		No No Yes Yes Yes Yes (Since macOS 10.14.4)[98] Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
14–16 macOS 11 No No Yes Yes Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
15–17 macOS 12 No No Yes Yes Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
16, 17 18 macOS 13 No No Yes Yes Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
17 18 macOS 14 No No Yes Yes Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
18 macOS 15 No No Yes Yes Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
Browser
or OS API 		Version Platforms SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV certificate SHA-2 certificate ECDSA certificate BEAST CRIME POODLE (SSLv3) RC4 FREAK Logjam Protocol selection by user
Apple Safari
(mobile)[n 35] 		3 iPhone OS 1, 2 No[102] Yes Yes No No No No No No Vulnerable Not affected Vulnerable Vulnerable Vulnerable Vulnerable No
4, 5 iPhone OS 3, iOS 4 No Yes Yes No No No Yes[103] Yes Yes (Since iOS 4)[77] Vulnerable Not affected Vulnerable Vulnerable Vulnerable Vulnerable No
5, 6 iOS 5, 6 No Yes Yes Yes[99] Yes[99] No Yes Yes Yes Vulnerable Not affected Vulnerable Vulnerable Vulnerable Vulnerable No
7 iOS 7 No Yes Yes Yes Yes No Yes Yes Yes[104] Mitigated[105] Not affected Vulnerable Vulnerable Vulnerable Vulnerable No
8 iOS 8 No Yes Yes Yes Yes No Yes Yes Yes Mitigated Not affected Mitigated[n 34] Lowest priority[106][n 34] Mitigated[107] Mitigated[108] No
9 iOS 9 No No Yes Yes Yes No Yes Yes Yes Mitigated Not affected Not affected Lowest priority Mitigated Mitigated No
10, 11 iOS 10, 11 No No Yes Yes Yes No Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
12–14 iOS
12, 13, 14 		No No Yes Yes Yes Yes (Since iOS 12.2)[98] Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
iPadOS
13, 14
15 iOS 15 No No Yes Yes Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
iPadOS 15
16 iOS 16 No No Yes Yes Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
iPadOS 16
17 iOS 17 No No Yes Yes Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
iPadOS 17
18 iOS 18 No No ? ? Yes Yes Yes Yes Yes Mitigated Not affected Not affected Disabled by default[n 16] Mitigated Mitigated No
iPadOS 18
Browser
or OS API 		Version Platforms SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV[n 3] SHA-2 ECDSA BEAST[n 4] CRIME[n 5] POODLE (SSLv3)[n 6] RC4[n 7] FREAK[4][5] Logjam Protocol selection by user
Google Android OS[109] Android 1.0–4.0.4 No Yes Yes No No No ? Yes[2] Yes (Since 3.0)[77][3] ? ? Vulnerable Vulnerable Vulnerable Vulnerable No
Android 4.1–4.4.4 No Yes Yes Disabled by default[110] Disabled by default[110] No ? Yes Yes ? ? Vulnerable Vulnerable Vulnerable Vulnerable No
Android 5.0–5.0.2 No Yes Yes Yes[110][111] Yes[110][111] No ? Yes Yes ? ? Vulnerable Vulnerable Vulnerable Vulnerable No
Android 5.1–5.1.1 No Disabled by default[citation needed] Yes Yes Yes No ? Yes Yes ? ? Not affected Only as fallback[n 15] Mitigated Mitigated No
Android 6.0–7.1.2 No Disabled by default[citation needed] Yes Yes Yes No ? Yes Yes ? ? Not affected Disabled by default Mitigated Mitigated No
Android 8.0–9 No No[112] Yes Yes Yes No ? Yes Yes ? ? Not affected Disabled by default Mitigated Mitigated No
Android 10–11 No No Yes Yes Yes Yes ? Yes Yes ? ? Not affected Disabled by default Mitigated Mitigated No
Android 12 No No Yes Yes Yes Yes ? Yes Yes ? ? Not affected Disabled by default Mitigated Mitigated No
Android 12L No No Yes Yes Yes Yes ? Yes Yes ? ? Not affected Disabled by default Mitigated Mitigated No
Android 13 No No Yes Yes Yes Yes ? Yes Yes ? ? Not affected Disabled by default Mitigated Mitigated No
Android 14 No No Yes Yes Yes Yes ? Yes Yes ? ? Not affected Disabled by default Mitigated Mitigated No
Android 15 No No ? ? Yes Yes ? Yes Yes ? ? Not affected Disabled by default Mitigated Mitigated No
Android 16 No No ? ? Yes Yes ? Yes Yes ? ? Not affected Disabled by default Mitigated Mitigated No
Browser
or OS API 		Version Platforms SSL 2.0 (insecure) SSL 3.0 (insecure) TLS 1.0 (deprecated) TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV certificate SHA-2 certificate ECDSA certificate BEAST CRIME POODLE (SSLv3) RC4 FREAK Logjam Protocol selection by user
Color or Note Significance
Browser version Platform
Browser version Operating system Future release; under development
Browser version Operating system Current latest release
Browser version Operating system Former release; still supported
Browser version Operating system Former release; long-term support still active, but will end in less than 12 months
Browser version Operating system Former release; no longer supported
— Operating system Mixed/Unspecified
Operating system (Version+) Minimum required operating system version (for supported versions of the browser)
Operating system No longer supported for this operating system
Notes
  1. ^ Note actual security depends on other factors such as negotiated cipher, encryption strength, etc. (see § Cipher table).
  2. ^ Whether a user or administrator can choose the protocols to be used or not. If yes, several attacks such as BEAST (vulnerable in SSL 3.0 and TLS 1.0) or POODLE (vulnerable in SSL 3.0) can be avoided.
  3. ^ a b Whether EV SSL and DV SSL (normal SSL) can be distinguished by indicators (green lock icon, green address bar, etc.) or not.
  4. ^ a b e.g. 1/n-1 record splitting.
  5. ^ a b e.g. Disabling header compression in HTTPS/SPDY.
  6. ^ a b
    • Complete mitigations; disabling SSL 3.0 itself, "anti-POODLE record splitting". "Anti-POODLE record splitting" is effective only with client-side implementation and valid according to the SSL 3.0 specification, however, it may also cause compatibility issues due to problems in server-side implementations.
    • Partial mitigations; disabling fallback to SSL 3.0, TLS_FALLBACK_SCSV, disabling cipher suites with CBC mode of operation. If the server also supports TLS_FALLBACK_SCSV, the POODLE attack will fail against this combination of server and browser, but connections where the server does not support TLS_FALLBACK_SCSV and does support SSL 3.0 will still be vulnerable. If disabling cipher suites with CBC mode of operation in SSL 3.0, only cipher suites with RC4 are available, RC4 attacks become easier.
    • When disabling SSL 3.0 manually, POODLE attack will fail.
  7. ^ a b
    • Complete mitigation; disabling cipher suites with RC4.
    • Partial mitigations to keeping compatibility with old systems; setting the priority of RC4 to lower.
  8. ^ Google Chrome (and Chromium) supports TLS 1.0, and TLS 1.1 from version 22 (it was added, then dropped from version 21). TLS 1.2 support had been added, then dropped from Chrome 29.[6][7][8]
  9. ^ Uses the TLS implementation provided by BoringSSL for Android, OS X, and Windows[9] or by NSS for Linux. Google is switching the TLS library used in Chrome to BoringSSL from NSS completely.
  10. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak Configure enabling/disabling of each protocols via setting/option (menu name is dependent on browsers).
  11. ^ a b c d e f g h i j k l configure the maximum and the minimum version of enabling protocols with command-line option.
  12. ^ TLS_FALLBACK_SCSV is implemented.[17] Fallback to SSL 3.0 is disabled since version 39.[18]
  13. ^ In addition to TLS_FALLBACK_SCSV and disabling a fallback to SSL 3.0, SSL 3.0 itself is disabled by default.[18]
  14. ^ a b c Configure the minimum version of enabling protocols via chrome://flags[22] (the maximum version can be configured with command-line option).
  15. ^ a b c d e f g Only when no cipher suites with other than RC4 is available, cipher suites with RC4 will be used as a fallback.
  16. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap All RC4 cipher suites are disabled by default.
  17. ^ Uses the TLS implementation provided by NSS. As of Firefox 22, Firefox supports only TLS 1.0 despite the bundled NSS supporting TLS 1.1. Since Firefox 23, TLS 1.1 can be enabled, but was not enabled by default due to issues. Firefox 24 has TLS 1.2 support disabled by default. TLS 1.1 and TLS 1.2 have been enabled by default in Firefox 27 release.
  18. ^ a b c d e f g h i j k l m n Configure the maximum and the minimum version of enabling protocols via about:config.
  19. ^ SSL 3.0 itself is disabled by default.[40] In addition, fallback to SSL 3.0 is disabled since version 34,[42] and TLS_FALLBACK_SCSV is implemented since 35.0 and ESR 31.3.0.[40][43]
  20. ^ a b c d e f IE uses the TLS implementation of the Microsoft Windows operating system provided by the Schannel security support provider. TLS 1.1 and 1.2 are disabled by default until IE11.[53][54]
  21. ^ a b Windows NT 3.1 supports IE 1–2, Windows NT 3.5 supports IE 1–3, Windows NT 3.51 and Windows NT 4.0 supports IE 1–6.
  22. ^ a b c d Windows XP as well as Server 2003 and older support only weak ciphers like Triple DES and RC4 out of the box.[58] The weak ciphers of these Schannel version are not only used for IE, but also for other Microsoft products running on this OS, like Microsoft Office or Windows Update. Only Windows Server 2003 can get a manual update to support AES ciphers by KB948963[59]
  23. ^ a b c d MS13-095 or MS14-049 for Windows Server 2003, Windows XP x64 and Windows XP SP3 (32-bit).
  24. ^ a b c d e f g h DTLS protocol counterpart version, however, is not supported.[63]
  25. ^ RC4 can be disabled except as a fallback (Only when no cipher suites with other than RC4 is available, cipher suites with RC4 will be used as a fallback).[66]
  26. ^ IE11 will continue to support these operating systems if they are with ESUs until at least October 13, 2026.
  27. ^ a b Fallback to SSL 3.0 is sites blocked by default in Internet Explorer 11 for Protected Mode.[68][69] SSL 3.0 is disabled by default in Internet Explorer 11 since April 2015.[70]
  28. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab TLS 1.0 and 1.1 are disabled by default in Internet Explorer 11 and EdgeHTML since September 2022.[71][72]
  29. ^ IE11 ran out of support for GAC (formerly CB and SAC) editions of Windows 10 since June 15, 2022.[75][76]
  30. ^ a b c Could be disabled via registry editing but need 3rd Party tools to do this.[78]
  31. ^ Edge (formerly known as Project Spartan) is based on a fork of the Internet Explorer 11 rendering engine.
  32. ^ Safari uses the operating system implementation on Mac OS X, Windows (XP, Vista, 7)[84] with unknown version,[85] Safari 5 is the last version available for Windows. OS X 10.8 on have SecureTransport support for TLS 1.1 and 1.2[86] Qualys SSL report simulates Safari 5.1.9 connecting with TLS 1.0 not 1.1 or 1.2.[87]
  33. ^ In September 2013, Apple implemented BEAST mitigation in OS X 10.8 (Mountain Lion), but it was not turned on by default, resulting in Safari still being theoretically vulnerable to the BEAST attack on that platform.[89][90] BEAST mitigation has been enabled by default from OS X 10.8.5 updated in February 2014.[91]
  34. ^ a b c d e f g h Because Apple removed support for all CBC protocols in SSL 3.0 to mitigate POODLE,[92][93] this leaves only RC4, which is also completely broken by the RC4 attacks in SSL 3.0.
  35. ^ Mobile Safari and third-party software utilizing the system UIWebView library use the iOS operating system implementation, which supports TLS 1.2 as of iOS 5.0.[99][100][101]

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