Mozilla Thunderbird vulnerabilities

CVE-2021-43539 [HIGH] CWE-416 CVE-2021-43539: Failure to correctly record the location of live pointers across wasm instance calls resulted in a G Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

CVE-2019-11759 [HIGH] CWE-120 CVE-2019-11759: An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored o An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVE-2023-6858 [HIGH] CWE-787 CVE-2023-6858: Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handli Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CVE-2018-18493 [CRITICAL] CWE-119 CVE-2018-18493: A buffer overflow can occur in the Skia library during buffer offset calculations with hardware acce A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

CVE-2022-40962 [HIGH] CWE-787 CVE-2022-40962: Mozilla developers Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson, and the Mozilla Mozilla developers Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 104 and Firefox ESR 102.2. 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 vuln

CVE-2023-6861 [HIGH] CWE-787 CVE-2023-6861: The `nsWindow::PickerOpen(void)` method was susceptible to a heap buffer overflow when running in he The `nsWindow::PickerOpen(void)` method was susceptible to a heap buffer overflow when running in headless mode. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CVE-2024-11705 [CRITICAL] CWE-476 CVE-2024-11705: `NSC_DeriveKey` inadvertently assumed that the `phKey` parameter is always non-NULL. When it was pas `NSC_DeriveKey` inadvertently assumed that the `phKey` parameter is always non-NULL. When it was passed as NULL, a segmentation fault (SEGV) occurred, leading to crashes. This behavior conflicted with the PKCS#11 v3.0 specification, which allows `phKey` to be NULL for certain mechanisms. This vulnerability affects Firefox < 133 and Thunderbird < 1

CVE-2013-0744 [CRITICAL] CWE-416 CVE-2013-0744: Use-after-free vulnerability in the TableBackgroundPainter::TableBackgroundData::Destroy function in Use-after-free vulnerability in the TableBackgroundPainter::TableBackgroundData::Destroy function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code or

CVE-2020-16044 [HIGH] CVE-2020-16044: Use after free in WebRTC in Google Chrome prior to 88 Use after free in WebRTC in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to potentially exploit heap corruption via a crafted SCTP packet.

CVE-2023-6864 [HIGH] CWE-787 CVE-2023-6864: Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. Some of these b Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. 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 ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CVE-2021-23995 [HIGH] CWE-672 CVE-2021-23995: When Responsive Design Mode was enabled, it used references to objects that were previously freed. W When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

CVE-2020-15669 [HIGH] CWE-416 CVE-2020-15669: When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objec When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.

CVE-2013-1674 [CRITICAL] CWE-399 CVE-2013-1674: Use-after-free vulnerability in Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunder Use-after-free vulnerability in Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 allows remote attackers to execute arbitrary code via vectors involving an onresize event during the playing of a video.

CVE-2026-84639 [CRITICAL] CWE-457 CVE-2026-84639: Triggering an error condition in certain MIME bodies would cause uninitialized memory to be used. Th Triggering an error condition in certain MIME bodies would cause uninitialized memory to be used. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

CVE-2023-6208 [HIGH] CVE-2023-6208: When using X11, text selected by the page using the Selection API was erroneously copied into the pr When using X11, text selected by the page using the Selection API was erroneously copied into the primary selection, a temporary storage not unlike the clipboard. *This bug only affects Firefox on X11. Other systems are unaffected.* This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVE-2022-26381 [HIGH] CWE-416 CVE-2022-26381: An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to a potentially exploitable crash. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.

CVE-2023-37201 [HIGH] CWE-416 CVE-2023-37201: An attacker could have triggered a use-after-free condition when creating a WebRTC connection over H An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

CVE-2024-0755 [HIGH] CWE-94 CVE-2024-0755: Memory safety bugs present in Firefox 121, Firefox ESR 115.6, and Thunderbird 115.6. Some of these b Memory safety bugs present in Firefox 121, Firefox ESR 115.6, and Thunderbird 115.6. 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 < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

CVE-2022-31739 [HIGH] CWE-73 CVE-2022-31739: When downloading files on Windows, the % character was not escaped, which could have lead to a downl When downloading files on Windows, the % character was not escaped, which could have lead to a download incorrectly being saved to attacker-influenced paths that used variables such as %HOMEPATH% or %APPDATA%.*This bug only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 91.10, Firefox < 1

CVE-2023-25729 [HIGH] CWE-863 CVE-2023-25729: Permission prompts for opening external schemes were only shown for <code>ContentPrincipals</code> r Permission prompts for opening external schemes were only shown for ContentPrincipals resulting in extensions being able to open them without user interaction via ExpandedPrincipals. This could lead to further malicious actions such as downloading files or interacting with software already installed on the system. This vulnerability affects Firefox <