Debian Thunderbird vulnerabilities

CVE-2018-18500 [CRITICAL] CVE-2018-18500: firefox - A use-after-free vulnerability can occur while parsing an HTML5 stream in concer... A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65. Scope: local sid: resolved (fixed in 65.0-1)

CVE-2026-2762 [CRITICAL] CVE-2026-2762: firefox - Integer overflow in the JavaScript: Standard Library component. This vulnerabili... Integer overflow in the JavaScript: Standard Library 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)

CVE-2025-14324 [CRITICAL] CVE-2025-14324: 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 < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6. Scope: local sid: resolved (fixed in 146.0-1)

CVE-2025-14330 [CRITICAL] CVE-2025-14330: 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)

CVE-2026-2777 [CRITICAL] CVE-2026-2777: firefox - Privilege escalation in the Messaging System component. This vulnerability affec... Privilege escalation in the Messaging System 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)

CVE-2024-2614 [HIGH] CVE-2024-2614: firefox - Memory safety bugs present in Firefox 123, Firefox ESR 115.8, and Thunderbird 11... Memory safety bugs present in Firefox 123, Firefox ESR 115.8, and Thunderbird 115.8. 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 < 124, Firefox ESR < 115.9, and Thunderbird < 115.9. Scope: local sid: resolved (fixed in 12

CVE-2024-3854 [HIGH] CVE-2024-3854: firefox - In some code patterns the JIT incorrectly optimized switch statements and genera... In some code patterns the JIT incorrectly optimized switch statements and generated code with out-of-bounds-reads. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10. Scope: local sid: resolved (fixed in 125.0.1-1)

CVE-2018-18498 [CRITICAL] CVE-2018-18498: firefox - A potential vulnerability leading to an integer overflow can occur during buffer... A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value. This leads to a possible out-of-bounds write. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64. Scope: local sid: resolved (fixed in 64.0-1)

CVE-2025-8034 [HIGH] CVE-2025-8034: firefox - Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbir... Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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 < 141, F

CVE-2022-46872 [HIGH] CVE-2022-46872: firefox - An attacker who compromised a content process could have partially escaped the s... An attacker who compromised a content process could have partially escaped the sandbox to read arbitrary files via clipboard-related IPC messages.*This bug only affects Thunderbird for Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 108, Firefox ESR < 102.6, and Thunderbird < 102.6. Scope: local sid: resolved (fixed in 108.0-1)

CVE-2026-0891 [HIGH] CVE-2026-0891: firefox - Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox ... Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. 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 < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

CVE-2018-18335 [HIGH] CVE-2018-18335: chromium - Heap buffer overflow in Skia in Google Chrome prior to 71.0.3578.80 allowed a re... Heap buffer overflow in Skia in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Scope: local bookworm: resolved (fixed in 71.0.3578.80-1) bullseye: resolved (fixed in 71.0.3578.80-1) forky: resolved (fixed in 71.0.3578.80-1) sid: resolved (fixed in 71.0.3578.80-1) trixie: resolved (fixed

CVE-2020-6463 [HIGH] CVE-2020-6463: chromium - Use after free in ANGLE in Google Chrome prior to 81.0.4044.122 allowed a remote... Use after free in ANGLE in Google Chrome prior to 81.0.4044.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Scope: local bookworm: resolved (fixed in 83.0.4103.83-1) bullseye: resolved (fixed in 83.0.4103.83-1) forky: resolved (fixed in 83.0.4103.83-1) sid: resolved (fixed in 83.0.4103.83-1) trixie: resolved (fixed in 83.

CVE-2025-1016 [CRITICAL] CVE-2025-1016: firefox - Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 115.19, ... Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6. 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 < 135, Firefox ESR < 115.20, Fi

CVE-2025-0242 [MEDIUM] CVE-2025-0242: firefox - Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 115.18, ... Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 115.18, Firefox ESR 128.5, Thunderbird 115.18, and Thunderbird 128.5. 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 Firefox < 134, Firefox ESR < 128.6, Firef

CVE-2026-2781 [CRITICAL] CVE-2026-2781: firefox - Integer overflow in the Libraries component in NSS. This vulnerability affects F... Integer overflow in the Libraries component in NSS. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8. Scope: local sid: resolved (fixed in 148.0-1)

CVE-2021-24002 [HIGH] CVE-2021-24002: firefox - When a user clicked on an FTP URL containing encoded newline characters (%0A and... When a user clicked on an FTP URL containing encoded newline characters (%0A and %0D), the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Scope: local sid: resolved (fixed in 88.0-1)

CVE-2025-4083 [CRITICAL] CVE-2025-4083: firefox - A process isolation vulnerability in Thunderbird stemmed from improper handling ... A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird <

CVE-2026-4715 [CRITICAL] CVE-2026-4715: firefox - Uninitialized memory in the Graphics: Canvas2D component. This vulnerability aff... Uninitialized memory in the Graphics: Canvas2D 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)

CVE-2026-4716 [CRITICAL] CVE-2026-4716: firefox - Incorrect boundary conditions, uninitialized memory in the JavaScript Engine com... Incorrect boundary conditions, uninitialized memory in the JavaScript Engine 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)