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firefox

Vendor: Mozilla • 3,269 CVEs

CVEs (3,269)

CVE
VENDORS
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UPDATED
PUBLISHED
CVSS
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
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox 123, Firefox ESR 115.8, and Thunderbird 115.8. 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 123, Firefox ESR 115.8, and Thunderbird 115.8. 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, Firefox ESR < 115.9, and Thunderbird < 115.9.Show less
1Mozilla
1Firefox
Jun 17, 2026
Mar 19, 2024
N/A· v4
7.5 HIGH· v3
N/A· v2
Data was not properly sanitized when decoding a QUIC ACK frame; this could have led to unrestricted memory consumption and a crash. This vulnerability affects Firefox < 124.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
8.1 HIGH· v3
N/A· v2
If an attacker could find a way to trigger a particular code path in `SafeRefPtr`, it could have triggered a crash or potentially be leveraged to achieve code execution. This vulnerability affects Firefox < 124, Firefox...Show more
If an attacker could find a way to trigger a particular code path in `SafeRefPtr`, it could have triggered a crash or potentially be leveraged to achieve code execution. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.Show less
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
5.5 MEDIUM· v3
N/A· v2
A missing delay on when pointer lock was used could have allowed a malicious page to trick a user into granting permissions. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
6.1 MEDIUM· v3
N/A· v2
Using a markup injection an attacker could have stolen nonce values. This could have been used to bypass strict content security policies. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird <...Show more
Using a markup injection an attacker could have stolen nonce values. This could have been used to bypass strict content security policies. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.Show less
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
6.1 MEDIUM· v3
N/A· v2
The permission prompt input delay could expire while the window is not in focus. This makes it vulnerable to clickjacking by malicious websites. This vulnerability affects Firefox < 124, Firefox ESR < 115.10, and Thunder...Show more
The permission prompt input delay could expire while the window is not in focus. This makes it vulnerable to clickjacking by malicious websites. This vulnerability affects Firefox < 124, Firefox ESR < 115.10, and Thunderbird < 115.10.Show less
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
8.4 HIGH· v3
N/A· v2
`AppendEncodedAttributeValue(), ExtraSpaceNeededForAttrEncoding()` and `AppendEncodedCharacters()` could have experienced integer overflows, causing underallocation of an output buffer leading to an out of bounds write....Show more
`AppendEncodedAttributeValue(), ExtraSpaceNeededForAttrEncoding()` and `AppendEncodedCharacters()` could have experienced integer overflows, causing underallocation of an output buffer leading to an out of bounds write. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.Show less
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
8.1 HIGH· v3
N/A· v2
Return registers were overwritten which could have allowed an attacker to execute arbitrary code. *Note:* This issue only affected Armv7-A systems. Other operating systems are unaffected. This vulnerability affects Firef...Show more
Return registers were overwritten which could have allowed an attacker to execute arbitrary code. *Note:* This issue only affected Armv7-A systems. Other operating systems are unaffected. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.Show less
1Mozilla
1Firefox
Jun 17, 2026
Mar 19, 2024
N/A· v4
3.7 LOW· v3
N/A· v2
Passing invalid data could have led to invalid wasm values being created, such as arbitrary integers turning into pointer values. This vulnerability affects Firefox < 124.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
5.9 MEDIUM· v3
N/A· v2
An attacker could have leveraged the Windows Error Reporter to run arbitrary code on the system escaping the sandbox. *Note:* This issue only affected Windows operating systems. Other operating systems are unaffected. Th...Show more
An attacker could have leveraged the Windows Error Reporter to run arbitrary code on the system escaping the sandbox. *Note:* This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.Show less
2Debian
Mozilla
3Debian Linux
FirefoxThunderbird
Jun 17, 2026
Mar 19, 2024
N/A· v4
6.5 MEDIUM· v3
N/A· v2
NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacker to recover the private data. This vulnerability affects Firefox < 124, Firefox ESR < 115...Show more
NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacker to recover the private data. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.Show less
1Mozilla
1Firefox
Jun 17, 2026
Feb 22, 2024
N/A· v4
7.8 HIGH· v3
N/A· v2
An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme. This vulnerability affects Firefox for iOS < 123.