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firefox

Vendor: Mozilla • 3,473 CVEs

CVEs (3,473)

CVE
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CVSS
1Mozilla
1Firefox
Jul 22, 2026
Jun 2, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3.
1Mozilla
1Firefox
Jul 22, 2026
Jun 2, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 151.0.3.
1Mozilla
1Firefox
Jul 22, 2026
Jun 1, 2026
N/A· v4
5.4 MEDIUM· v3
N/A· v2
Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then b...Show more
Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScript execution in an internal origin. This vulnerability was fixed in Firefox for iOS 151.2.Show less
1Mozilla
1Firefox
Jul 22, 2026
Jun 1, 2026
N/A· v4
5.4 MEDIUM· v3
N/A· v2
Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, poten...Show more
Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was fixed in Firefox for iOS 151.2.Show less
1Mozilla
1Firefox
Jul 23, 2026
May 25, 2026
N/A· v4
5.4 MEDIUM· v3
N/A· v2
Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed d...Show more
Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed domain, causing attacker-controlled sites to appear as trusted origins. This vulnerability was fixed in Firefox for iOS 151.1.Show less
1Mozilla
1Firefox
Jul 23, 2026
May 19, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies. Th...Show more
Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies. This vulnerability was fixed in Firefox for iOS 151.0.Show less
1Mozilla
2Firefox
Thunderbird
Oct 21, 2026
May 19, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150. 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 arbitrar...Show more
Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150. 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 Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.Show less
1Mozilla
2Firefox
Thunderbird
Oct 21, 2026
May 19, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150. 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 arbitrar...Show more
Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150. 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 Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.Show less
1Mozilla
2Firefox
Thunderbird
Oct 21, 2026
May 19, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Thunderbird 150. 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 vulnerabil...Show more
Memory safety bugs present in Thunderbird 150. 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 Firefox 151 and Thunderbird 151.Show less
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
1Mozilla
2Firefox
Thunderbird
Jul 23, 2026
May 19, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.