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Vendor: Mozilla • 3,181 CVEs

CVEs (3,181)

CVE
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PUBLISHED
CVSS
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Apr 16, 2024
N/A· v4
8.1 HIGH· v3
N/A· v2
Memory safety bug present in Firefox 124, Firefox ESR 115.9, and Thunderbird 115.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary cod...Show more
Memory safety bug present in Firefox 124, Firefox ESR 115.9, and Thunderbird 115.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 16, 2024
N/A· v4
9.8 CRITICAL· v3
N/A· v2
The executable file warning was not presented when downloading .xrm-ms files. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 125...Show more
The executable file warning was not presented when downloading .xrm-ms files. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.Show less
1Mozilla
1Firefox
Jun 17, 2026
Apr 16, 2024
N/A· v4
5.3 MEDIUM· v3
N/A· v2
The MarkStack assignment operator, part of the JavaScript engine, could access uninitialized memory if it were used in a self-assignment. This vulnerability affects Firefox < 125.
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Apr 16, 2024
N/A· v4
4.0 MEDIUM· v3
N/A· v2
If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird...Show more
If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.Show less
1Mozilla
1Firefox
Jun 17, 2026
Apr 16, 2024
N/A· v4
6.2 MEDIUM· v3
N/A· v2
An out-of-memory condition during object initialization could result in an empty shape list. If the JIT subsequently traced the object it would crash. This vulnerability affects Firefox < 125.
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Apr 16, 2024
N/A· v4
5.9 MEDIUM· v3
N/A· v2
On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thun...Show more
On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.Show less
1Mozilla
1Firefox
Jun 17, 2026
Apr 16, 2024
N/A· v4
7.5 HIGH· v3
N/A· v2
It was possible to mutate a JavaScript object so that the JIT could crash while tracing it. This vulnerability affects Firefox < 125.
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Apr 16, 2024
N/A· v4
7.8 HIGH· v3
N/A· v2
The JIT created incorrect code for arguments in certain cases. This led to potential use-after-free crashes during garbage collection. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115...Show more
The JIT created incorrect code for arguments in certain cases. This led to potential use-after-free crashes during garbage collection. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.Show less
1Mozilla
1Firefox
Jun 17, 2026
Apr 16, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
A use-after-free could occur during WASM execution if garbage collection ran during the creation of an array. This vulnerability affects Firefox < 125.
1Mozilla
1Firefox
Jun 17, 2026
Apr 16, 2024
N/A· v4
6.5 MEDIUM· v3
N/A· v2
In certain cases the JIT incorrectly optimized MSubstr operations, which led to out-of-bounds reads. This vulnerability affects Firefox < 125.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 16, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
In some code patterns the JIT incorrectly optimized switch statements and generated code with out-of-bounds-reads. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
1Mozilla
1Firefox
Jun 17, 2026
Apr 16, 2024
N/A· v4
7.5 HIGH· v3
N/A· v2
A use-after-free could result if a JavaScript realm was in the process of being initialized when a garbage collection started. This vulnerability affects Firefox < 125.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 16, 2024
N/A· v4
7.5 HIGH· v3
N/A· v2
GetBoundName could return the wrong version of an object when JIT optimizations were applied. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 16, 2024
N/A· v4
3.7 LOW· v3
N/A· v2
There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser. This vulnerability affects Firefox < 125, Firefox ESR...Show more
There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.Show less
1Mozilla
1Firefox
Jun 17, 2026
Apr 3, 2024
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Dragging Javascript URLs to the address bar could cause them to be loaded, bypassing restrictions and security protections This vulnerability affects Firefox for iOS < 124.
1Mozilla
1Firefox
Jun 17, 2026
Apr 3, 2024
N/A· v4
7.5 HIGH· v3
N/A· v2
If an insecure element was added to a page after a delay, Firefox would not replace the secure icon with a mixed content security status This vulnerability affects Firefox for iOS < 124.
2Debian
Mozilla
2Debian Linux
Firefox
Jun 17, 2026
Mar 22, 2024
N/A· v4
8.4 HIGH· v3
N/A· v2
An attacker was able to inject an event handler into a privileged object that would allow arbitrary JavaScript execution in the parent process. Note: This vulnerability affects Desktop Firefox only, it does not affect mo...Show more
An attacker was able to inject an event handler into a privileged object that would allow arbitrary JavaScript execution in the parent process. Note: This vulnerability affects Desktop Firefox only, it does not affect mobile versions of Firefox. This vulnerability affects Firefox < 124.0.1 and Firefox ESR < 115.9.1.Show less
1Mozilla
1Firefox
Jun 17, 2026
Mar 22, 2024
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by fooling range-based bounds check elimination. This vulnerability affects Firefox < 124.0.1.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
2.7 LOW· v3
N/A· v2
To harden ICU against exploitation, the behavior for out-of-memory conditions was changed to crash instead of attempt to continue. This vulnerability affects Firefox ESR < 115.9 and Thunderbird < 115.9.
1Mozilla
1Firefox
Jun 17, 2026
Mar 19, 2024
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Memory safety bugs present in Firefox 123. 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...Show more
Memory safety bugs present in Firefox 123. 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 < 124.Show less