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 5 of 44
CVE-2024-9392P3CRITICALCVSS 9.8fixed in firefox 131.0-1 (sid)2024
CVE-2024-9392 [CRITICAL] CVE-2024-9392: firefox - A compromised content process could have allowed for the arbitrary loading of cr...
A compromised content process could have allowed for the arbitrary loading of cross-origin pages. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.
Scope: local
sid: resolved (fixed in 131.0-1)
debian
CVE-2025-8031P3CRITICALCVSS 9.8fixed in firefox 141.0-1 (sid)2025
CVE-2025-8031 [CRITICAL] CVE-2025-8031: firefox - The `username:password` part was not correctly stripped from URLs in CSP reports...
The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability affects Firefox < 141, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
Scope: local
sid: resolved (fixed in 141.0-1)
debian
CVE-2026-4691P3CRITICALCVSS 9.8fixed in firefox 149.0-1 (sid)2026
CVE-2026-4691 [CRITICAL] CVE-2026-4691: firefox - Use-after-free in the CSS Parsing and Computation component. This vulnerability ...
Use-after-free in the CSS Parsing and Computation 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-2026-2759P3CRITICALCVSS 9.8fixed in firefox 148.0-1 (sid)2026
CVE-2026-2759 [CRITICAL] CVE-2026-2759: firefox - Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerab...
Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Scope: local
sid: resolved (fixed in 148.0-1)
debian
CVE-2026-4721P3CRITICALCVSS 9.8fixed in firefox 149.0-1 (sid)2026
CVE-2026-4721 [CRITICAL] CVE-2026-4721: firefox - Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird...
Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. 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 < 149, Firefox ESR < 115.34, Firefox ESR < 140.9
debian
CVE-2026-4710P3CRITICALCVSS 9.8fixed in firefox 149.0-1 (sid)2026
CVE-2026-4710 [CRITICAL] CVE-2026-4710: firefox - Incorrect boundary conditions in the Audio/Video component. This vulnerability a...
Incorrect boundary conditions in the Audio/Video component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Scope: local
sid: resolved (fixed in 149.0-1)
debian
CVE-2026-2793P3CRITICALCVSS 9.8fixed in firefox 148.0-1 (sid)2026
CVE-2026-2793 [CRITICAL] CVE-2026-2793: firefox - Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird...
Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. 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 < 148, Firefox ESR < 115.33, Firefox ESR < 140.8
debian
CVE-2026-5731P3CRITICALCVSS 9.8fixed in firefox 149.0.2-1 (sid)2026
CVE-2026-5731 [CRITICAL] CVE-2026-5731: firefox - Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunder...
Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 < 149.0.2, Firefox ESR < 115.34.1,
debian
CVE-2021-44538P3CRITICALCVSS 9.8fixed in olm 3.2.8~dfsg-1 (bookworm)2021
CVE-2021-44538 [CRITICAL] CVE-2021-44538: olm - The olm_session_describe function in Matrix libolm before 3.2.7 is vulnerable to...
The olm_session_describe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted sequence of messages to manipulate the state of the receiver's session i
debian
CVE-2025-14321P3CRITICALCVSS 9.8fixed in firefox 146.0-1 (sid)2025
CVE-2025-14321 [CRITICAL] CVE-2025-14321: firefox - Use-after-free in the WebRTC: Signaling component. This vulnerability affects Fi...
Use-after-free in the WebRTC: Signaling 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-2024-8385P3CRITICALCVSS 9.8fixed in firefox 130.0-1 (sid)2024
CVE-2024-8385 [CRITICAL] CVE-2024-8385: firefox - A difference in the handling of StructFields and ArrayTypes in WASM could be use...
A difference in the handling of StructFields and ArrayTypes in WASM could be used to trigger an exploitable type confusion vulnerability. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.
Scope: local
sid: resolved (fixed in 130.0-1)
debian
CVE-2026-0879P3CRITICALCVSS 9.8fixed in firefox 147.0-1 (sid)2026
CVE-2026-0879 [CRITICAL] CVE-2026-0879: firefox - Sandbox escape due to incorrect boundary conditions in the Graphics component. T...
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Scope: local
sid: resolved (fixed in 147.0-1)
debian
CVE-2026-2767P3CRITICALCVSS 9.8fixed in firefox 148.0-1 (sid)2026
CVE-2026-2767 [CRITICAL] CVE-2026-2767: firefox - Use-after-free in the JavaScript: WebAssembly component. This vulnerability affe...
Use-after-free in the JavaScript: WebAssembly 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-2026-4720P3CRITICALCVSS 9.8fixed in firefox 149.0-1 (sid)2026
CVE-2026-4720 [CRITICAL] CVE-2026-4720: firefox - Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox ...
Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. 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 < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140
debian
CVE-2026-2792P3CRITICALCVSS 9.8fixed in firefox 148.0-1 (sid)2026
CVE-2026-2792 [CRITICAL] CVE-2026-2792: firefox - Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox ...
Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. 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 < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140
debian
CVE-2026-5734P3CRITICALCVSS 9.8fixed in firefox 149.0.2-1 (sid)2026
CVE-2026-5734 [CRITICAL] CVE-2026-5734: firefox - Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Fire...
Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 < 149.0.2, Firefox ESR < 140.9.1, Thunderbird < 149.0.2,
debian
CVE-2024-11697P3HIGHCVSS 8.8fixed in firefox 133.0-1 (sid)2024
CVE-2024-11697 [HIGH] CVE-2024-11697: firefox - When handling keypress events, an attacker may have been able to trick a user in...
When handling keypress events, an attacker may have been able to trick a user into bypassing the "Open Executable File?" confirmation dialog. This could have led to malicious code execution. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.
Scope: local
sid: resolved (fixed in 133.0-1)
debian
CVE-2018-5146P3HIGHCVSS 8.8fixed in firefox 59.0.1-1 (sid)2018
CVE-2018-5146 [HIGH] CVE-2018-5146: firefox - An out of bounds memory write while processing Vorbis audio data was reported th...
An out of bounds memory write while processing Vorbis audio data was reported through the Pwn2Own contest. This vulnerability affects Firefox < 59.0.1, Firefox ESR < 52.7.2, and Thunderbird < 52.7.
Scope: local
sid: resolved (fixed in 59.0.1-1)
debian
CVE-2025-1009P3CRITICALCVSS 9.8fixed in firefox 135.0-1 (sid)2025
CVE-2025-1009 [CRITICAL] CVE-2025-1009: firefox - An attacker could have caused a use-after-free via crafted XSLT data, leading to...
An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.
Scope: local
sid: resolved (fixed in 135.0-1)
debian
CVE-2026-2774P3CRITICALCVSS 9.8fixed in firefox 148.0-1 (sid)2026
CVE-2026-2774 [CRITICAL] CVE-2026-2774: firefox - Integer overflow in the Audio/Video component. This vulnerability affects Firefo...
Integer overflow in the Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Scope: local
sid: resolved (fixed in 148.0-1)
debian