When saving a page to PDF, certain font styles could have led to a potential use-after-free crash. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
8.8CVSS
5.7AI Score
0.0004EPSS
A memory allocation check was missing which would lead to a use-after-free if the allocation failed. This could have triggered a crash or potentially be leveraged to achieve code execution. This vulnerability affects Firefox < 126.
8.6CVSS
6.3AI Score
0.0004EPSS
An HTTP digest authentication nonce value was generated using rand() which could lead to predictable values. This vulnerability affects Firefox < 126.
5.9AI Score
0.0004EPSS
When a network error occurred during page load, the prior content could have remained in view with a blank URL bar. This could have been used to obfuscate a spoofed web site. This vulnerability affects Firefox < 126.
7.5CVSS
5.7AI Score
0.001EPSS
The ShmemCharMapHashEntry() code was susceptible to potentially undefined behavior by bypassing the move semantics for one of its data members. This vulnerability affects Firefox < 126.
5.9AI Score
0.0004EPSS
An iterator stop condition was missing when handling WASM code in the built-in profiler, potentially leading to invalid memory access and undefined behavior. Note: This issue only affects the application when the profiler is running. This vulnerability affects Firefox < 126.
5.9CVSS
6AI Score
0.0004EPSS
A file dialog shown while in full-screen mode could have resulted in the window remaining disabled. This vulnerability affects Firefox < 126.
8.2CVSS
5.7AI Score
0.0004EPSS
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 E...
7AI Score
0.0004EPSS
Memory safety bugs present in Firefox 125. 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.
9.8CVSS
7AI Score
0.0004EPSS
If a specific sequence of actions is performed when opening a new tab, the triggering principal associated with the new tab may have been incorrect. The triggering principal is used to calculate many values, including the Referer and Sec-* headers, meaning there is the potential for incorrect secur...
5.3CVSS
6.3AI Score
0.0004EPSS
If a garbage collection was triggered at the right time, a use-after-free could have occurred during object transplant. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.
8.1CVSS
5.4AI Score
0.0004EPSS
In addition to detecting when a user was taking a screenshot (XXX), a website was able to overlay the 'My Shots' button that appeared, and direct the user to a replica Firefox Screenshots page that could be used for phishing. This vulnerability affects Firefox < 127.
4.3CVSS
6.2AI Score
0.0005EPSS
By monitoring the time certain operations take, an attacker could have guessed which external protocol handlers were functional on a user's system. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.
4.3CVSS
5.3AI Score
0.001EPSS
By tricking the browser with a X-Frame-Options header, a sandboxed iframe could have presented a button that, if clicked by a user, would bypass restrictions to open a new window. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.
4.7CVSS
5.2AI Score
0.001EPSS
On Windows 10, when using the 'Save As' functionality, an attacker could have tricked the browser into saving the file with a disallowed extension such as .url by including an invalid character in the extension. Note: This issue only affected Windows operating systems. Other operating systems are u...
6.5CVSS
5.4AI Score
0.0004EPSS
Offscreen Canvas did not properly track cross-origin tainting, which could be used to access image data from another site in violation of same-origin policy. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.
6.1CVSS
5.2AI Score
0.0004EPSS
An attacker could have caused a use-after-free in the JavaScript engine to read memory in the JavaScript string section of the heap. This vulnerability affects Firefox < 127.
7.5CVSS
6.2AI Score
0.001EPSS
If an out-of-memory condition occurs at a specific point using allocations in the probabilistic heap checker, an assertion could have been triggered, and in rarer situations, memory corruption could have occurred. This vulnerability affects Firefox < 127.
9.8CVSS
6.7AI Score
0.001EPSS
By manipulating the text in an <input> tag, an attacker could have caused corrupt memory leading to a potentially exploitable crash. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.
8.6CVSS
5.4AI Score
0.0004EPSS
A website was able to detect when a user took a screenshot of a page using the built-in Screenshot functionality in Firefox. This vulnerability affects Firefox < 127.
4.3CVSS
6.3AI Score
0.0005EPSS
By manipulating the fullscreen feature while opening a data-list, an attacker could have overlaid a text box over the address bar. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 127.
6.1CVSS
6.2AI Score
0.0005EPSS
In violation of spec, cookie prefixes such as __Secure were being ignored if they were not correctly capitalized - by spec they should be checked with a case-insensitive comparison. This could have resulted in the browser not correctly honoring the behaviors specified by the prefix. This vulnerabil...
9.8CVSS
6.3AI Score
0.0004EPSS
Memory safety bugs present in Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11. 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 < 127, Firefox E...
7CVSS
6.7AI Score
0.0004EPSS
Memory safety bugs present in Firefox 126. 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 < 127.
9.8CVSS
7.5AI Score
0.0004EPSS
Memory corruption in the networking stack could have led to a potentially exploitable crash. This vulnerability affects Firefox < 125, Firefox ESR < 115.12, and Thunderbird < 115.12.
7.5CVSS
5.7AI Score
0.0004EPSS
Due to large allocation checks in Angle for GLSL shaders being too lenient an out-of-bounds access could occur when allocating more than 8192 ints in private shader memory on mac OS. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < ...
8.7AI Score
0.0004EPSS
A race condition could lead to a cross-origin container obtaining permissions of the top-level origin. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.
7.5AI Score
0.0004EPSS
A mismatch between allocator and deallocator could have lead to memory corruption. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.
9.8CVSS
8.7AI Score
0.0004EPSS
In an out-of-memory scenario an allocation could fail but free would have been called on the pointer afterwards leading to memory corruption. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.
7.4CVSS
7.7AI Score
0.0004EPSS
Memory safety bugs present in Firefox 127, Firefox ESR 115.12, and Thunderbird 115.12. 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 < 128, Firefox E...
8.8AI Score
0.0004EPSS
Firefox Android allowed immediate interaction with permission prompts. This could be used for tapjacking. This vulnerability affects Firefox < 128.
8.8CVSS
6.3AI Score
0.0004EPSS
Clipboard code failed to check the index on an array access. This could have lead to an out-of-bounds read. This vulnerability affects Firefox < 128 and Thunderbird < 128.
9.8CVSS
8.7AI Score
0.0004EPSS
It was possible to prevent a user from exiting pointerlock when pressing escape and to overlay customValidity notifications from a <select> element over certain permission prompts. This could be used to confuse a user into giving a site unintended permissions. This vulnerability affects Firef...
8.8CVSS
8.6AI Score
0.0004EPSS
It was possible to move the cursor using pointerlock from an iframe. This allowed moving the cursor outside of the viewport and the Firefox window. This vulnerability affects Firefox < 128 and Thunderbird < 128.
4.3CVSS
8.6AI Score
0.001EPSS
When almost out-of-memory an elliptic curve key which was never allocated could have been freed again. This vulnerability affects Firefox < 128 and Thunderbird < 128.
8.8CVSS
8.8AI Score
0.001EPSS
Form validation popups could capture escape key presses. Therefore, spamming form validation messages could be used to prevent users from exiting full-screen mode. This vulnerability affects Firefox < 128 and Thunderbird < 128.
4.3CVSS
8.6AI Score
0.001EPSS
A nested iframe, triggering a cross-site navigation, could send SameSite=Strict or Lax cookies. This vulnerability affects Firefox < 128 and Thunderbird < 128.
9.8CVSS
8.6AI Score
0.0004EPSS
CSP violations generated links in the console tab of the developer tools, pointing to the violating resource. This caused a DNS prefetch which leaked that a CSP violation happened. This vulnerability affects Firefox < 128 and Thunderbird < 128.
5.3CVSS
6.2AI Score
0.0004EPSS
The frame iterator could get stuck in a loop when encountering certain wasm frames leading to incorrect stack traces. This vulnerability affects Firefox < 128 and Thunderbird < 128.
8.6AI Score
0.0004EPSS
The frame iterator could get stuck in a loop when encountering certain wasm frames leading to incorrect stack traces. This vulnerability affects Firefox < 128 and Thunderbird < 128.
8.6AI Score
0.0004EPSS
Memory safety bugs present in Firefox 127 and Thunderbird 127. 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 < 128 and Thunderbird < 128.
9.7AI Score
0.0004EPSS
Select options could obscure the fullscreen notification dialog. This could be used by a malicious site to perform a spoofing attack. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.
6.5CVSS
8.7AI Score
0.001EPSS
Insufficient checks when processing graphics shared memory could have led to memory corruption. This could be leveraged by an attacker to perform a sandbox escape. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird &...
9.6CVSS
8.9AI Score
0.001EPSS
A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.
8.8CVSS
8.2AI Score
0.001EPSS
Incomplete WebAssembly exception handing could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.
8.8CVSS
8.7AI Score
0.001EPSS
Editor code failed to check an attribute value. This could have led to an out-of-bounds read. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.
8.8CVSS
8.9AI Score
0.001EPSS
A select option could partially obscure security prompts. This could be used by a malicious site to trick a user into granting permissions.This issue only affects Android versions of Firefox. This vulnerability affects Firefox < 129.
8.1CVSS
6.2AI Score
0.001EPSS
Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection. On a site protected by Content Security Policy in "strict-dynamic" mode, an attacker able to inject an HTML element could have used a DOM Clobbering attack on some of the shims and achiev...
6.1CVSS
5.9AI Score
0.001EPSS
It was possible for a web extension with minimal permissions to create a StreamFilter which could be used to read and modify the response body of requests on any site. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbi...
8.1CVSS
8.6AI Score
0.001EPSS
ANGLE failed to initialize parameters which lead to reading from uninitialized memory. This could be leveraged to leak sensitive data from memory. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.
6.5CVSS
7AI Score
0.001EPSS