1,306 results · Feed
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High 8.8
Memory safety bugs fixed in Firefox 128 and Thunderbird 128
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 < 1…
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Medium 5.5
Incorrect listing of stack frames
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.
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Medium 5.3
CSP violation leakage when using devtools
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.
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Medium 4.3
Incorrect listing of stack frames
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.
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Medium 6.3
Form validation popups could block exiting full-screen mode
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.
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Critical 9.8
Incorrect handling of SameSite cookies
A nested iframe, triggering a cross-site navigation, could send SameSite=Strict or Lax cookies. This vulnerability affects Firefox < 128 and Thunderbird < 128.
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High 8.8
Memory corruption in NSS
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.
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High 8.2
Out-of-bounds read in clipboard component
Clipboard code failed to check the index on an array access. This could have led to an out-of-bounds read. This vulnerability affects Firefox < 128 and Thunderbird < 128.
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High 8.8
Leaving pointerlock by pressing the escape key could be prevented
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 per…
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Medium 4.3
Cursor could be moved out of the viewport using pointerlock.
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.
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Critical 9.8
Memory corruption in NSS
A mismatch between allocator and deallocator could have led to memory corruption. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.
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High 7.4
Memory corruption in thread creation
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.
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High 7.5
Memory safety bugs fixed in Firefox 128, Firefox ESR 115.13, Thunderbird 128, and Thunderbird 115.13
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 vulnerabi…
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Medium 4.7
Race condition in permission assignment
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.
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Medium 5.4
By manipulating the fullscreen feature while opening a data-list, an attacker could have overlaid a text box over the a…
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Critical 9.8
Memory safety bugs present in Firefox 126. Some of these bugs showed evidence of memory corruption and we presume that …
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Critical 9.8
In violation of spec, cookie prefixes such as `__Secure` were being ignored if they were not correctly capitalized - by…
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High 7.5
An attacker could have caused a use-after-free in the JavaScript engine to read memory in the JavaScript string section…
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Critical 9.8
If an out-of-memory condition occurs at a specific point using allocations in the probabilistic heap checker, an assert…
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Medium 4.3
In addition to detecting when a user was taking a screenshot (XXX), a website was able to overlay the 'My Shots' button…
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Medium 5.3
A website was able to detect when a user took a screenshot of a page using the built-in Screenshot functionality in Fir…
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High 7.0
Memory safety bugs present in Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11. Some of these bugs showed eviden…
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High 8.6
By manipulating the text in an `<input>` tag, an attacker could have caused corrupt memory leading to a potential…
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Medium 4.7
By tricking the browser with a `X-Frame-Options` header, a sandboxed iframe could have presented a button that, if clic…
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Medium 6.1
Offscreen Canvas did not properly track cross-origin tainting, which could be used to access image data from another si…
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High 8.1
If a garbage collection was triggered at the right time, a use-after-free could have occurred during object transplant.…
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Medium 4.3
By monitoring the time certain operations take, an attacker could have guessed which external protocol handlers were fu…
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Critical 9.8
Memory safety bugs present in Firefox 125. Some of these bugs showed evidence of memory corruption and we presume that …
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High 8.2
A file dialog shown while in full-screen mode could have resulted in the window remaining disabled. This vulnerability …
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High 7.5
When a network error occurred during page load, the prior content could have remained in view with a blank URL bar. Thi…
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Medium 5.9
An iterator stop condition was missing when handling WASM code in the built-in profiler, potentially leading to invalid…
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Medium 6.5
The `ShmemCharMapHashEntry()` code was susceptible to potentially undefined behavior by bypassing the move semantics fo…
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Medium 5.9
An HTTP digest authentication nonce value was generated using `rand()` which could lead to predictable values. This vul…
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High 8.6
A memory allocation check was missing which would lead to a use-after-free if the allocation failed. This could have tr…
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Critical 9.8
Multiple WebRTC threads could have claimed a newly connected audio input leading to use-after-free. This vulnerability …
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Medium 5.9
When importing resources using Web Workers, error messages would distinguish the difference between `application/javasc…
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Medium 6.1
A bug in popup notifications' interaction with WebAuthn made it easier for an attacker to trick a user into granting pe…
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High 8.8
When saving a page to PDF, certain font styles could have led to a potential use-after-free crash. This vulnerability a…
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High 7.5
Memory safety bugs present in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10. Some of these bugs showed eviden…
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Medium 5.6
PDF.js vulnerable to arbitrary JavaScript execution upon opening a malicious PDF
A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.