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Vendor: Mozilla • 3,181 CVEs

CVEs (3,181)

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2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Jan 23, 2024
N/A· v4
4.3 MEDIUM· v3
N/A· v2
It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an incorrect timestamp used to prevent input after page load. This vulnerability affects Firefox < 1...Show more
It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an incorrect timestamp used to prevent input after page load. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.Show less
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Jan 23, 2024
N/A· v4
6.5 MEDIUM· v3
N/A· v2
An out of bounds write in ANGLE could have allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.
2Debian
Mozilla
2Debian Linux
Firefox
Jun 17, 2026
Dec 19, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox 120. 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 120. 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 < 121.Show less
1Mozilla
1Firefox
Jun 17, 2026
Dec 19, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Browser tab titles were being leaked by GNOME to system logs. This could potentially expose the browsing habits of users running in a private tab. This vulnerability affects Firefox < 121.
1Mozilla
1Firefox
Jun 17, 2026
Dec 19, 2023
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Under certain conditions, Firefox did not display a warning when a user attempted to navigate to a new protocol handler. This vulnerability affects Firefox < 121.
1Mozilla
2Firefox
Firefox Focus
Jun 17, 2026
Dec 19, 2023
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Applications which spawn a Toast notification in a background thread may have obscured fullscreen notifications displayed by Firefox. *This issue only affects Android versions of Firefox and Firefox Focus.* This vulnera...Show more
Applications which spawn a Toast notification in a background thread may have obscured fullscreen notifications displayed by Firefox. *This issue only affects Android versions of Firefox and Firefox Focus.* This vulnerability affects Firefox < 121.Show less
1Mozilla
1Firefox
Jun 17, 2026
Dec 19, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
A `&lt;dialog>` element could have been manipulated to paint content outside of a sandboxed iframe. This could allow untrusted content to display under the guise of trusted content. This vulnerability affects Firefox < 1...Show more
A `&lt;dialog>` element could have been manipulated to paint content outside of a sandboxed iframe. This could allow untrusted content to display under the guise of trusted content. This vulnerability affects Firefox < 121.Show less
1Mozilla
1Firefox
Jun 17, 2026
Dec 19, 2023
N/A· v4
4.3 MEDIUM· v3
N/A· v2
In some instances, the user-agent would allow push requests which lacked a valid VAPID even though the push manager subscription defined one. This could allow empty messages to be sent from unauthorized parties. *This bu...Show more
In some instances, the user-agent would allow push requests which lacked a valid VAPID even though the push manager subscription defined one. This could allow empty messages to be sent from unauthorized parties. *This bug only affects Firefox on Android.* This vulnerability affects Firefox < 121.Show less
2Debian
Mozilla
3Debian Linux
FirefoxFirefox Esr
Jun 17, 2026
Dec 19, 2023
N/A· v4
6.1 MEDIUM· v3
N/A· v2
The timing of a button click causing a popup to disappear was approximately the same length as the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click...Show more
The timing of a button click causing a popup to disappear was approximately the same length as the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox ESR < 115.6 and Firefox < 121.Show less
1Mozilla
1Firefox
Jun 17, 2026
Dec 19, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
TypedArrays can be fallible and lacked proper exception handling. This could lead to abuse in other APIs which expect TypedArrays to always succeed. This vulnerability affects Firefox < 121.
2Debian
Mozilla
3Debian Linux
FirefoxFirefox Esr
Jun 17, 2026
Dec 19, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
`EncryptingOutputStream` was susceptible to exposing uninitialized data. This issue could only be abused in order to write data to a local disk which may have implications for private browsing mode. This vulnerability a...Show more
`EncryptingOutputStream` was susceptible to exposing uninitialized data. This issue could only be abused in order to write data to a local disk which may have implications for private browsing mode. This vulnerability affects Firefox ESR < 115.6 and Firefox < 121.Show less
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Dec 19, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
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...Show more
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.Show less
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Dec 19, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and...Show more
The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.Show less
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Dec 19, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Dec 19, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
The `VideoBridge` allowed any content process to use textures produced by remote decoders. This could be abused to escape the sandbox. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 1...Show more
The `VideoBridge` allowed any content process to use textures produced by remote decoders. This could be abused to escape the sandbox. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.Show less
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Dec 19, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
A use-after-free condition affected TLS socket creation when under memory pressure. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Dec 19, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Dec 19, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. *This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is...Show more
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. *This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.Show less
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Dec 19, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. Th...Show more
The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.Show less
1Mozilla
1Firefox
Jun 17, 2026
Dec 19, 2023
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Multiple NSS NIST curves were susceptible to a side-channel attack known as "Minerva". This attack could potentially allow an attacker to recover the private key. This vulnerability affects Firefox < 121.