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Vendor archive

mozilla CVEs

Beta · best-effort

3,726 CVEs tagged to vendor mozilla973 Critical, 1,084 High, 1,560 Medium, 109 Low, 0 Unrated.

CVE-2026-16361

Published Jul 21, 2026

Memory safety bugs present in Thunderbird ESR 140.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been…

CVSS 9.8 · Critical
evidence mentions
4
Buzz score
26.1
Vendor/product tagsBeta · best-effort

CVE-2026-16360

Published Jul 21, 2026

Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effor…

CVSS 9.8 · Critical
evidence mentions
8
Buzz score
37.0
Vendor/product tagsBeta · best-effort

CVE-2026-16359

Published Jul 21, 2026

Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderb…

CVSS 9.1 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16358

Published Jul 21, 2026

Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 14…

CVSS 9.8 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16357

Published Jul 21, 2026

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.…

CVSS 9.8 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16356

Published Jul 21, 2026

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153,…

CVSS 9.8 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16355

Published Jul 21, 2026

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 1…

CVSS 9.8 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16354

Published Jul 21, 2026

Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 1…

CVSS 7.5 · High
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16353

Published Jul 21, 2026

Invalid pointer in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.…

CVSS 9.8 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16352

Published Jul 21, 2026

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153,…

CVSS 9.8 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16351

Published Jul 21, 2026

Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Th…

CVSS 9.8 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16350

Published Jul 21, 2026

Incorrect boundary conditions in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunde…

CVSS 9.8 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-16349

Published Jul 21, 2026

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 1…

CVSS 9.8 · Critical
evidence mentions
6
Buzz score
29.5
Vendor/product tagsBeta · best-effort

CVE-2026-15719

Published Jul 14, 2026

We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox E…

CVSS 5.4 · Medium
evidence mentions
6
Buzz score
34.5
Vendor/product tagsBeta · best-effort

CVE-2026-15718

Published Jul 14, 2026

We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox E…

CVSS 4.3 · Medium
evidence mentions
5
Buzz score
32.9
Vendor/product tagsBeta · best-effort

CVE-2026-14906

Published Jul 13, 2026

Pages with malicious titles could potentially allow saved PDF content to overwrite PDF files or bundled content within the Firefox for iOS application sandbox. This vulnerability…

CVSS 5.3 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-13356

Published Jul 7, 2026

A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar…

CVSS 6.3 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-57963

Published Jul 1, 2026

An attacker who can send HTML chat messages (via Matrix or XMPP) can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was…

CVSS 6.5 · Medium
evidence mentions
3
Buzz score
23.9
Vendor/product tagsBeta · best-effort

CVE-2026-57962

Published Jul 1, 2026

A malicious LDAP server, which a Thunderbird user is configured to query for address-book autocomplete, can stash arbitrarily large amounts of attacker-supplied data into the Thun…

CVSS 5.3 · Medium
evidence mentions
3
Buzz score
23.9
Vendor/product tagsBeta · best-effort

CVE-2026-14241

Published Jun 30, 2026

Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploit…

CVSS 9.8 · Critical
evidence mentions
3
Buzz score
23.9
Vendor/product tagsBeta · best-effort

CVE-2026-53900

Published Jun 16, 2026

Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in TemporaryDocument, allowing a malicious site to inject arbitrary cookies int…

CVSS 4.3 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-53899

Published Jun 16, 2026

Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site.…

CVSS 6.5 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-12330

Published Jun 16, 2026

Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.

CVSS 5.4 · Medium
evidence mentions
4
Buzz score
26.1
Vendor/product tagsBeta · best-effort

CVE-2026-12328

Published Jun 16, 2026

Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corrupt…

CVSS 8.1 · High
evidence mentions
30
Buzz score
44.5
Vendor/product tagsBeta · best-effort
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