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Vendors · mozilla

mozilla

· 250 Critical

Total CVEs

3,606

Critical

250

Products

43

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3,606

Products (43)

firefox3,172 CVEsthunderbird1,731 CVEsseamonkey707 CVEsfirefox esr490 CVEsthunderbird esr228 CVEsbugzilla151 CVEsmozilla109 CVEsnetwork security services50 CVEsmozilla suite27 CVEsfirefox focus20 CVEsfirefox mobile20 CVEsfocus15 CVEsfirefox os14 CVEsnss6 CVEscamino5 CVEsbleach5 CVEsbonsai4 CVEsvpn4 CVEsconvict3 CVEsnetscape portable runtime3 CVEspollbot2 CVEsgecko2 CVEswebthings gateway2 CVEsgeckodriver2 CVEsmozjpeg2 CVEsnunjucks2 CVEszamboni1 CVEscommon voice1 CVEsdurian web application server1 CVEsfirefoxos1 CVEsgeckb1 CVEshawk1 CVEshubs cloud1 CVEshubs cloud reticulum1 CVEslibxul1 CVEsmozilla vpn1 CVEsneqo1 CVEsnss esr1 CVEspersona1 CVEsrhino1 CVEssccache1 CVEsthin-vec1 CVEs0din scanner1 CVEs

Recent Vulnerabilities

View all 3,606 →
CVE-2026-9078MEDIUM 5.4

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.

CVE-2026-8706MEDIUM 6.5

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.

CVE-2026-8975HIGH 8.8

Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 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.

CVE-2026-8974HIGH 8.8

Memory safety bugs present in Firefox ESR 140.10 and Firefox 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.

CVE-2026-8973HIGH 8.8

Memory safety bugs present in Firefox 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.

CVE-2026-8972HIGH 8.8

Privilege escalation in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVE-2026-8971MEDIUM 6.5

Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVE-2026-8970HIGH 8.8

Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVE-2026-8969HIGH 8.1

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVE-2026-8968HIGH 7.5

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.

CVE-2026-8967HIGH 7.5

Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVE-2026-8966HIGH 7.5

Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVE-2026-8965HIGH 7.5

Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVE-2026-8964HIGH 7.5

Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVE-2026-8963HIGH 7.5

Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVE-2026-8962HIGH 8.1

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVE-2026-8961MEDIUM 6.5

Spoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVE-2026-8960HIGH 7.5

Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVE-2026-8959CRITICAL 9.6

Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVE-2026-8958HIGH 8.6

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVE-2026-8957HIGH 8.8

Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVE-2026-8956CRITICAL 9.8

Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVE-2026-8955HIGH 8.8

Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVE-2026-8954HIGH 7.5

Incorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVE-2026-8953CRITICAL 9.6

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.