Debian Firefox vulnerabilities
1,550 known vulnerabilities affecting debian/firefox.
Total CVEs
1,550
CISA KEV
11
actively exploited
Public exploits
39
Exploited in wild
20
Severity breakdown
CRITICAL333HIGH633MEDIUM542LOW42
Vulnerabilities
Page 20 of 78
CVE-2024-4777P3HIGHCVSS 8.8fixed in firefox 126.0-1 (sid)2024
CVE-2024-4777 [HIGH] CVE-2024-4777: firefox - Memory safety bugs present in Firefox 125, Firefox ESR 115.10, and Thunderbird 1...
Memory safety bugs present in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10. 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 < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
Scope: local
sid: resolved (fixed i
debian
CVE-2026-5732P3HIGHCVSS 8.8fixed in firefox 149.0.2-1 (sid)2026
CVE-2026-5732 [HIGH] CVE-2026-5732: firefox - Incorrect boundary conditions, integer overflow in the Graphics: Text component....
Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 140.9.1, Thunderbird < 149.0.2, and Thunderbird < 140.9.1.
Scope: local
sid: resolved (fixed in 149.0.2-1)
debian
CVE-2017-5455P3HIGHCVSS 7.5fixed in firefox 52.0.1-1 (sid)2017
CVE-2017-5455 [HIGH] CVE-2017-5455: firefox - The internal feed reader APIs that crossed the sandbox barrier allowed for a san...
The internal feed reader APIs that crossed the sandbox barrier allowed for a sandbox escape and escalation of privilege if combined with another vulnerability that resulted in remote code execution inside the sandboxed process. This vulnerability affects Firefox ESR < 52.1 and Firefox < 53.
Scope: local
sid: resolved (fixed in 52.0.1-1)
debian
CVE-2017-7824P3CRITICALCVSS 9.8fixed in firefox 56.0-1 (sid)2017
CVE-2017-7824 [CRITICAL] CVE-2017-7824: firefox - A buffer overflow occurs when drawing and validating elements with the ANGLE gra...
A buffer overflow occurs when drawing and validating elements with the ANGLE graphics library, used for WebGL content. This is due to an incorrect value being passed within the library during checks and results in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
Scope: local
sid: resolved (fixed
debian
CVE-2017-5434P3CRITICALCVSS 9.8fixed in firefox 52.0.1-1 (sid)2017
CVE-2017-5434 [CRITICAL] CVE-2017-5434: firefox - A use-after-free vulnerability occurs when redirecting focus handling which resu...
A use-after-free vulnerability occurs when redirecting focus handling which 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)
debian
CVE-2017-5433P3CRITICALCVSS 9.8fixed in firefox 52.0.1-1 (sid)2017
CVE-2017-5433 [CRITICAL] CVE-2017-5433: firefox - A use-after-free vulnerability in SMIL animation functions occurs when pointers ...
A use-after-free vulnerability in SMIL animation functions occurs when pointers to animation elements in an array are dropped from the animation controller while still in use. 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
debian
CVE-2017-5439P3CRITICALCVSS 9.8fixed in firefox 52.0.1-1 (sid)2017
CVE-2017-5439 [CRITICAL] CVE-2017-5439: firefox - A use-after-free vulnerability during XSLT processing due to poor handling of te...
A use-after-free vulnerability during XSLT processing due to poor handling of template parameters. 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)
debian
CVE-2017-7784P3CRITICALCVSS 9.8fixed in firefox 55.0-1 (sid)2017
CVE-2017-7784 [CRITICAL] CVE-2017-7784: firefox - A use-after-free vulnerability can occur when reading an image observer during f...
A use-after-free vulnerability can occur when reading an image observer during frame reconstruction after the observer has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
Scope: local
sid: resolved (fixed in 55.0-1)
debian
CVE-2017-5429P3CRITICALCVSS 9.8fixed in firefox 52.0.1-1 (sid)2017
CVE-2017-5429 [CRITICAL] CVE-2017-5429: firefox - Memory safety bugs were reported in Firefox 52, Firefox ESR 45.8, Firefox ESR 52...
Memory safety bugs were reported in Firefox 52, Firefox ESR 45.8, Firefox ESR 52, and Thunderbird 52. 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 Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
Sco
debian
CVE-2016-9898P3CRITICALCVSS 9.8fixed in firefox 50.1.0-1 (sid)2016
CVE-2016-9898 [CRITICAL] CVE-2016-9898: firefox - Use-after-free resulting in potentially exploitable crash when manipulating DOM ...
Use-after-free resulting in potentially exploitable crash when manipulating DOM subtrees in the Editor. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.
Scope: local
sid: resolved (fixed in 50.1.0-1)
debian
CVE-2018-12378P3CRITICALCVSS 9.8fixed in firefox 62.0-1 (sid)2018
CVE-2018-12378 [CRITICAL] CVE-2018-12378: firefox - A use-after-free vulnerability can occur when an IndexedDB index is deleted whil...
A use-after-free vulnerability can occur when an IndexedDB index is deleted while still in use by JavaScript code that is providing payload values to be stored. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
Scope: local
sid: resolved (fixed in 62.0-1)
debian
CVE-2018-12377P3CRITICALCVSS 9.8fixed in firefox 62.0-1 (sid)2018
CVE-2018-12377 [CRITICAL] CVE-2018-12377: firefox - A use-after-free vulnerability can occur when refresh driver timers are refreshe...
A use-after-free vulnerability can occur when refresh driver timers are refreshed in some circumstances during shutdown when the timer is deleted while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
Scope: local
sid: resolved (fixed in 62.0-1)
debian
CVE-2018-5091P3CRITICALCVSS 9.8fixed in firefox 58.0-1 (sid)2018
CVE-2018-5091 [CRITICAL] CVE-2018-5091: firefox - A use-after-free vulnerability can occur during WebRTC connections when interact...
A use-after-free vulnerability can occur during WebRTC connections when interacting with the DTMF timers. This results in a potentially exploitable crash. This vulnerability affects Firefox ESR < 52.6 and Firefox < 58.
Scope: local
sid: resolved (fixed in 58.0-1)
debian
CVE-2017-5443P3CRITICALCVSS 9.8fixed in firefox 52.0.1-1 (sid)2017
CVE-2017-5443 [CRITICAL] CVE-2017-5443: firefox - An out-of-bounds write vulnerability while decoding improperly formed BinHex for...
An out-of-bounds write vulnerability while decoding improperly formed BinHex format archives. 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)
debian
CVE-2024-1553P3HIGHCVSS 8.1fixed in firefox 123.0-1 (sid)2024
CVE-2024-1553 [HIGH] CVE-2024-1553: firefox - Memory safety bugs present in Firefox 122, Firefox ESR 115.7, and Thunderbird 11...
Memory safety bugs present in Firefox 122, Firefox ESR 115.7, and Thunderbird 115.7. 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 < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.
Scope: local
sid: resolved (fixed in 12
debian
CVE-2016-2799P3HIGHCVSS 8.8fixed in firefox 45.0-1 (sid)2016
CVE-2016-2799 [HIGH] CVE-2016-2799: firefox - Heap-based buffer overflow in the graphite2::Slot::setAttr function in Graphite ...
Heap-based buffer overflow in the graphite2::Slot::setAttr function in Graphite 2 before 1.3.6, as used in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Graphite smart font.
Scope: local
sid: resolved (fixed in 45.0-1)
debian
CVE-2017-7788P3CRITICALCVSS 9.8fixed in firefox 55.0-1 (sid)2017
CVE-2017-7788 [CRITICAL] CVE-2017-7788: firefox - When an "iframe" has a "sandbox" attribute and its content is specified using "s...
When an "iframe" has a "sandbox" attribute and its content is specified using "srcdoc", that content does not inherit the containing page's Content Security Policy (CSP) as it should unless the sandbox attribute included "allow-same-origin". This vulnerability affects Firefox < 55.
Scope: local
sid: resolved (fixed in 55.0-1)
debian
CVE-2025-3034P3HIGHCVSS 8.1fixed in firefox 137.0-1 (sid)2025
CVE-2025-3034 [HIGH] CVE-2025-3034: firefox - Memory safety bugs present in Firefox 136 and Thunderbird 136. Some of these bug...
Memory safety bugs present in Firefox 136 and Thunderbird 136. 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 < 137 and Thunderbird < 137.
Scope: local
sid: resolved (fixed in 137.0-1)
debian
CVE-2018-12359P3HIGHCVSS 8.8fixed in firefox 61.0-1 (sid)2018
CVE-2018-12359 [HIGH] CVE-2018-12359: firefox - A buffer overflow can occur when rendering canvas content while adjusting the he...
A buffer overflow can occur when rendering canvas content while adjusting the height and width of the canvas element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox
debian
CVE-2019-9796P3CRITICALCVSS 9.8fixed in firefox 66.0-1 (sid)2019
CVE-2019-9796 [CRITICAL] CVE-2019-9796: firefox - A use-after-free vulnerability can occur when the SMIL animation controller inco...
A use-after-free vulnerability can occur when the SMIL animation controller incorrectly registers with the refresh driver twice when only a single registration is expected. When a registration is later freed with the removal of the animation controller element, the refresh driver incorrectly leaves a dangling pointer to the driver's observer array. This vulnerabil
debian