Debian Firefox vulnerabilities

CVE-2025-14323 [HIGH] CVE-2025-14323: firefox - Privilege escalation in the DOM: Notifications component. This vulnerability aff... Privilege escalation in the DOM: Notifications 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-2025-13014 [HIGH] CVE-2025-13014: firefox - Use-after-free in the Audio/Video component. This vulnerability affects Firefox ... Use-after-free in the Audio/Video component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Firefox ESR < 115.30, Thunderbird < 145, and Thunderbird < 140.5. Scope: local sid: resolved (fixed in 145.0-1)

CVE-2025-13020 [HIGH] CVE-2025-13020: firefox - Use-after-free in the WebRTC: Audio/Video component. This vulnerability affects ... Use-after-free in the WebRTC: Audio/Video 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)

CVE-2026-5733 [HIGH] CVE-2026-5733: firefox - Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerabil... Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 149.0.2 and Thunderbird < 149.0.2. Scope: local sid: resolved (fixed in 149.0.2-1)

CVE-2026-4690 [HIGH] CVE-2026-4690: firefox - Sandbox escape due to incorrect boundary conditions, integer overflow in the XPC... Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM 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)

CVE-2026-2798 [HIGH] CVE-2026-2798: firefox - Use-after-free in the DOM: Core & HTML component. This vulnerability affects Fir... Use-after-free in the DOM: Core & HTML component. This vulnerability affects Firefox < 148 and Thunderbird < 148. Scope: local sid: resolved (fixed in 148.0-1)

CVE-2018-5156 [CRITICAL] CVE-2018-5156: firefox - A vulnerability can occur when capturing a media stream when the media source ty... A vulnerability can occur when capturing a media stream when the media source type is changed as the capture is occurring. This can result in stream data being cast to the wrong type causing a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61. Scope: local sid: resolved (fixed in 61

CVE-2026-4687 [HIGH] CVE-2026-4687: firefox - Sandbox escape due to incorrect boundary conditions in the Telemetry component. ... Sandbox escape due to incorrect boundary conditions in the Telemetry 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)

CVE-2017-5438 [CRITICAL] CVE-2017-5438: firefox - A use-after-free vulnerability during XSLT processing due to the result handler ... A use-after-free vulnerability during XSLT processing due to the result handler being held by a freed handler during handling. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53. Scope: local sid: resolved (fixed in 52.0.1-1)

CVE-2018-12392 [CRITICAL] CVE-2018-12392: firefox - When manipulating user events in nested loops while opening a document through s... When manipulating user events in nested loops while opening a document through script, it is possible to trigger a potentially exploitable crash due to poor event handling. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3. Scope: local sid: resolved (fixed in 63.0-1)

CVE-2025-6432 [HIGH] CVE-2025-6432: firefox - When Multi-Account Containers was enabled, DNS requests could have bypassed a SO... When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability affects Firefox < 140 and Thunderbird < 140. Scope: local sid: resolved (fixed in 140.0-1)

CVE-2017-7818 [CRITICAL] CVE-2017-7818: firefox - A use-after-free vulnerability can occur when manipulating arrays of Accessible ... A use-after-free vulnerability can occur when manipulating arrays of Accessible Rich Internet Applications (ARIA) elements within containers through the DOM. This results in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4. Scope: local sid: resolved (fixed in 56.0-1)

CVE-2025-11152 [HIGH] CVE-2025-11152: firefox - Sandbox escape due to integer overflow in the Graphics: Canvas2D component. This... Sandbox escape due to integer overflow in the Graphics: Canvas2D component. This vulnerability affects Firefox < 143.0.3. Scope: local sid: resolved (fixed in 143.0.3-1)

CVE-2017-5460 [CRITICAL] CVE-2017-5460: firefox - A use-after-free vulnerability in frame selection triggered by a combination of ... A use-after-free vulnerability in frame selection triggered by a combination of malicious script content and key presses by a user. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53. Scope: local sid: resolved (fixed in 52.0.1-1)

CVE-2024-2612 [HIGH] CVE-2024-2612: firefox - If an attacker could find a way to trigger a particular code path in `SafeRefPtr... If an attacker could find a way to trigger a particular code path in `SafeRefPtr`, it could have triggered a crash or potentially be leveraged to achieve code execution. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9. Scope: local sid: resolved (fixed in 124.0-1)

CVE-2024-3864 [HIGH] CVE-2024-3864: firefox - Memory safety bug present in Firefox 124, Firefox ESR 115.9, and Thunderbird 115... Memory safety bug present in Firefox 124, Firefox ESR 115.9, and Thunderbird 115.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10. Scope: local sid: resolved (fixed in 125.0.1-1)

CVE-2016-5287 [CRITICAL] CVE-2016-5287: firefox - A potentially exploitable use-after-free crash during actor destruction with ser... A potentially exploitable use-after-free crash during actor destruction with service workers. This issue does not affect releases earlier than Firefox 49. This vulnerability affects Firefox < 49.0.2. Scope: local sid: resolved (fixed in 50.0-1)

CVE-2025-13027 [HIGH] CVE-2025-13027: firefox - Memory safety bugs present in Firefox 144 and Thunderbird 144. Some of these bug... Memory safety bugs present in Firefox 144 and Thunderbird 144. 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 < 145 and Thunderbird < 145. Scope: local sid: resolved (fixed in 145.0-1)

CVE-2019-9819 [CRITICAL] CVE-2019-9819: firefox - A vulnerability where a JavaScript compartment mismatch can occur while working ... A vulnerability where a JavaScript compartment mismatch can occur while working with the fetch API, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7. Scope: local sid: resolved (fixed in 67.0-2)

CVE-2019-9820 [CRITICAL] CVE-2019-9820: firefox - A use-after-free vulnerability can occur in the chrome event handler when it is ... A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7. Scope: local sid: resolved (fixed in 67.0-2)