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High 8.2
Memory safety bugs fixed in Firefox 136 and Thunderbird 136
Memory safety bugs present in Firefox 135 and Thunderbird 135. 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 was fixed in Firefo…
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High 7.3
Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents
jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but the fake extension after the null was used to determine the type of content. This could have been u…
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High 7.5
Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21, Firefox ESR 128.8, and Thunderbird 128.8
Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to…
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High 8.1
Inconsistent comparator in XSLT sorting led to out-of-bounds access
An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access. Only affected version 122 and later. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
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High 7.5
Use-after-free in WebTransportChild
It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbir…
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High 7.6
JIT corruption of WASM i32 return values on 64-bit CPUs
On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Th…
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High 8.8
Certificate length was not properly checked
Certificate length was not properly checked when added to a certificate store. In practice only trusted data was processed. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.
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High 7.3
Fullscreen notification is not displayed when fullscreen is re-requested
The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability was fixed in Firefox 135 and Thunderbird 135.
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High 7.7
Memory corruption when using JavaScript Text Segmentation
When segmenting specially crafted text, segmentation would corrupt memory leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.
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High 8.8
Memory safety bugs present in Firefox 132, Firefox ESR 128.4, and Thunderbird 128.4. Some of these bugs showed evidence…
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High 8.8
When handling keypress events, an attacker may have been able to trick a user into bypassing the "Open Executable File?…
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High 7.5
By sending a specially crafted push message, a remote server could have hung the parent process, causing the browser to…
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High 7.5
A clipboard "paste" button could persist across tabs which allowed a spoofing attack. This vulnerability affects Firefo…
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High 7.5
Repeated writes to history interface attributes could have been used to cause a Denial of Service condition in the brow…
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High 7.5
Video frames could have been leaked between origins in some situations. This vulnerability affects Firefox < 132, Firef…
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High 7.5
Truncation of a long URL could have allowed origin spoofing in a permission prompt. This vulnerability affects Firefox …
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High 7.3
Memory safety bugs present in Firefox 130. Some of these bugs showed evidence of memory corruption and we presume that …
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High 7.5
A website configured to initiate a specially crafted WebTransport session could crash the Firefox process leading to a …
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High 8.8
A potential memory corruption vulnerability could be triggered if an attacker had the ability to trigger an OOM at a sp…
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High 8.8
It is currently unknown if this issue is exploitable but a condition may arise where the structured clone of certain ob…
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High 7.5
An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://pdf.j…
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High 7.5
An attacker could write data to the user's clipboard, bypassing the user prompt, during a certain sequence of navigatio…
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High 7.5
Type Confusion in Async Generators in Javascript Engine
An error in the ECMA-262 specification relating to Async Generators could have resulted in a type confusion, potentially leading to memory corruption and an exploitable crash. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.1…
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High 7.5
Firefox normally asks for confirmation before asking the operating system to find an application to handle a scheme tha…
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High 8.8
Internal browser event interfaces were exposed to web content when privileged EventHandler listener callbacks ran for t…
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High 8.1
The date picker could partially obscure security prompts. This could be used by a malicious site to trick a user into g…
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High 7.5
ANGLE failed to initialize parameters which lead to reading from uninitialized memory. This could be leveraged to leak …
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High 8.8
Unexpected marking work at the start of sweeping could have led to a use-after-free. This vulnerability affects Firefox…
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High 8.8
A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution. This vulne…
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High 8.8
Insufficient checks when processing graphics shared memory could have led to memory corruption. This could be leveraged…
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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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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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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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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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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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High 7.5
Memory corruption in the networking stack could have led to a potentially exploitable crash. This vulnerability affects…