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Firefox Esr

firefox_esr

Vendor: Mozilla • 488 CVEs

CVEs (488)

CVE
VENDORS
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UPDATED
PUBLISHED
CVSS
1Mozilla
3Firefox
Firefox EsrThunderbird
Jun 17, 2026
Aug 6, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
3Firefox
Firefox EsrThunderbird
Jun 17, 2026
Aug 6, 2024
N/A· v4
9.6 CRITICAL· v3
N/A· v2
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 <...Show more
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 < 115.14.Show less
1Mozilla
3Firefox
Firefox EsrThunderbird
Jun 17, 2026
Aug 6, 2024
N/A· v4
6.5 MEDIUM· v3
N/A· v2
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...Show more
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.Show less
1Mozilla
3Firefox
Firefox EsrThunderbird
Jun 17, 2026
Jun 11, 2024
N/A· v4
4.7 MEDIUM· v3
N/A· v2
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 < 1...Show more
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.Show less
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Jun 11, 2024
N/A· v4
4.3 MEDIUM· v3
N/A· v2
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 Thun...Show more
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.Show less
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Jan 23, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox 121, Firefox ESR 115.6, and Thunderbird 115.6. 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 121, Firefox ESR 115.6, and Thunderbird 115.6. 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 < 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
In specific HSTS configurations an attacker could have bypassed HSTS on a subdomain. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Jan 23, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
A malicious devtools extension could have been used to escalate privileges. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Jan 23, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user into granting permissions. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7...Show more
A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user into granting permissions. 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
4.3 MEDIUM· v3
N/A· v2
A phishing site could have repurposed an `about:` dialog to show phishing content with an incorrect origin in the address bar. This vulnerability affects Firefox < 122 and Thunderbird < 115.7.
2Debian
Mozilla
4Debian Linux
FirefoxFirefox Esr+1 more
Jun 17, 2026
Jan 23, 2024
N/A· v4
6.5 MEDIUM· v3
N/A· v2
When a parent page loaded a child in an iframe with `unsafe-inline`, the parent Content Security Policy could have overridden the child Content Security Policy. This vulnerability affects Firefox < 122, Firefox ESR < 115...Show more
When a parent page loaded a child in an iframe with `unsafe-inline`, the parent Content Security Policy could have overridden the child Content Security Policy. 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
A Linux user opening the print preview dialog could have caused the browser to crash. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.
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
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
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
3Debian Linux
Firefox EsrThunderbird
Jun 17, 2026
Dec 19, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
A use-after-free was identified in the `nsDNSService::Init`. This issue appears to manifest rarely during start-up. This vulnerability affects Firefox ESR < 115.6 and Thunderbird < 115.6.
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.