Debian Thunderbird vulnerabilities
864 known vulnerabilities affecting debian/thunderbird.
Total CVEs
864
CISA KEV
10
actively exploited
Public exploits
23
Exploited in wild
16
Severity breakdown
CRITICAL166HIGH358MEDIUM317LOW23
Vulnerabilities
Page 21 of 44
CVE-2025-13019P3HIGHCVSS 8.1fixed in firefox 145.0-1 (sid)2025
CVE-2025-13019 [HIGH] CVE-2025-13019: firefox - Same-origin policy bypass in the DOM: Workers component. This vulnerability affe...
Same-origin policy bypass in the DOM: Workers component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Thunderbird < 145, and Thunderbird < 140.5.
Scope: local
sid: resolved (fixed in 145.0-1)
debian
CVE-2025-9180P3HIGHCVSS 8.1fixed in firefox 142.0-1 (sid)2025
CVE-2025-9180 [HIGH] CVE-2025-9180: firefox - Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerabilit...
Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
Scope: local
sid: resolved (fixed in 142.0-1)
debian
CVE-2020-6814P3CRITICALCVSS 9.8fixed in firefox 74.0-1 (sid)2020
CVE-2020-6814 [CRITICAL] CVE-2020-6814: firefox - Mozilla developers reported memory safety bugs present in Firefox and Thunderbir...
Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
Scope: local
sid
debian
CVE-2025-59375P3HIGHCVSS 7.5fixed in expat 2.7.2-1 (forky)2025
CVE-2025-59375 [HIGH] CVE-2025-59375: expat - libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory ...
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 2.7.2-1)
sid: resolved (fixed in 2.7.2-1)
trixie: open
debian
CVE-2026-4699P3HIGHCVSS 7.5fixed in firefox 149.0-1 (sid)2026
CVE-2026-4699 [HIGH] CVE-2026-4699: firefox - Incorrect boundary conditions in the Layout: Text and Fonts component. This vuln...
Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Scope: local
sid: resolved (fixed in 149.0-1)
debian
CVE-2026-4693P3HIGHCVSS 7.5fixed in firefox 149.0-1 (sid)2026
CVE-2026-4693 [HIGH] CVE-2026-4693: firefox - Incorrect boundary conditions in the Audio/Video: Playback component. This vulne...
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Scope: local
sid: resolved (fixed in 149.0-1)
debian
CVE-2024-1936P3HIGHCVSS 7.5fixed in thunderbird 1:115.9.0-1~deb12u1 (bookworm)2024
CVE-2024-1936 [HIGH] CVE-2024-1936: thunderbird - The encrypted subject of an email message could be incorrectly and permanently a...
The encrypted subject of an email message could be incorrectly and permanently assigned to an arbitrary other email message in Thunderbird's local cache. Consequently, when replying to the contaminated email message, the user might accidentally leak the confidential subject to a third-party. While this update fixes the bug and avoids future message contamination,
debian
CVE-2024-3852P3HIGHCVSS 7.5fixed in firefox 125.0.1-1 (sid)2024
CVE-2024-3852 [HIGH] CVE-2024-3852: firefox - GetBoundName could return the wrong version of an object when JIT optimizations ...
GetBoundName could return the wrong version of an object when JIT optimizations were applied. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
Scope: local
sid: resolved (fixed in 125.0.1-1)
debian
CVE-2026-4709P3HIGHCVSS 7.5fixed in firefox 149.0-1 (sid)2026
CVE-2026-4709 [HIGH] CVE-2026-4709: firefox - Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerabil...
Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Scope: local
sid: resolved (fixed in 149.0-1)
debian
CVE-2026-4706P3HIGHCVSS 7.5fixed in firefox 149.0-1 (sid)2026
CVE-2026-4706 [HIGH] CVE-2026-4706: firefox - Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerab...
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Scope: local
sid: resolved (fixed in 149.0-1)
debian
CVE-2006-0748P3HIGHCVSS 9.3fixed in firefox 1.5.dfsg+1.5.0.2-1 (sid)2006
CVE-2006-0748 [CRITICAL] CVE-2006-0748: firefox - Mozilla Firefox and Thunderbird 1.x before 1.5.0.2 and 1.0.x before 1.0.8, Mozil...
Mozilla Firefox and Thunderbird 1.x before 1.5.0.2 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0.1 allows remote attackers to execute arbitrary code via "an invalid and non-sensical ordering of table-related tags" that results in a negative array index.
Scope: local
sid: resolved (fixed in 1.5.dfsg+1.5.0.2-1)
debian
CVE-2025-14327P3HIGHCVSS 7.5fixed in firefox 146.0-1 (sid)2025
CVE-2025-14327 [HIGH] CVE-2025-14327: firefox - Spoofing issue in the Downloads Panel component. This vulnerability affects Fire...
Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146, Thunderbird < 146, Firefox ESR < 140.7, and Thunderbird < 140.7.
Scope: local
sid: resolved (fixed in 146.0-1)
debian
CVE-2026-2783P3HIGHCVSS 7.5fixed in firefox 148.0-1 (sid)2026
CVE-2026-2783 [HIGH] CVE-2026-2783: firefox - Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT c...
Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Scope: local
sid: resolved (fixed in 148.0-1)
debian
CVE-2024-6603P3HIGHCVSS 7.4fixed in firefox 128.0-1 (sid)2024
CVE-2024-6603 [HIGH] CVE-2024-6603: firefox - In an out-of-memory scenario an allocation could fail but free would have been c...
In an out-of-memory scenario an allocation could fail but free would have been called on the pointer afterwards leading to memory corruption. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.
Scope: local
sid: resolved (fixed in 128.0-1)
debian
CVE-2025-14325P3HIGHCVSS 7.3fixed in firefox 146.0-1 (sid)2025
CVE-2025-14325 [HIGH] CVE-2025-14325: firefox - JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability a...
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
Scope: local
sid: resolved (fixed in 146.0-1)
debian
CVE-2019-17024P3HIGHCVSS 8.8fixed in firefox 72.0-1 (sid)2019
CVE-2019-17024 [HIGH] CVE-2019-17024: firefox - Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox...
Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox ESR 68.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
Scope: local
sid: resolved (fixed in 72.0-1)
debian
CVE-2018-12389P3HIGHCVSS 8.8fixed in firefox-esr 60.3.0esr-1 (bookworm)2018
CVE-2018-12389 [HIGH] CVE-2018-12389: firefox-esr - Mozilla developers and community members reported memory safety bugs present in ...
Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3.
Scope: local
bookworm: resolved (fixed i
debian
CVE-2020-12419P3HIGHCVSS 8.8fixed in firefox 78.0-1 (sid)2020
CVE-2020-12419 [HIGH] CVE-2020-12419: firefox - When processing callbacks that occurred during window flushing in the parent pro...
When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
Scope: local
sid: resolved (fixed in 78.0-1)
debian
CVE-2020-6514P3MEDIUMCVSS 6.5fixed in chromium 87.0.4280.88-0.1 (bookworm)2020
CVE-2020-6514 [MEDIUM] CVE-2020-6514: chromium - Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 al...
Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a privileged network position to potentially exploit heap corruption via a crafted SCTP stream.
Scope: local
bookworm: resolved (fixed in 87.0.4280.88-0.1)
bullseye: resolved (fixed in 87.0.4280.88-0.1)
forky: resolved (fixed in 87.0.4280.88-0.1)
sid: resolved (fixe
debian
CVE-2019-17005P3HIGHCVSS 8.8fixed in firefox 71.0-1 (sid)2019
CVE-2019-17005 [HIGH] CVE-2019-17005: firefox - The plain text serializer used a fixed-size array for the number of <ol> element...
The plain text serializer used a fixed-size array for the number of elements it could process; however it was possible to overflow the static-sized array leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Scope: local
sid: resolved (fixed in 71.0-1)
debian