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The 15 most recently published vulnerabilities affecting mozilla.

• CVE-2026-18809Information disclosure in Firefox for Android and Firefox Focus for Android6.5Aug 4, 2026
• CVE-2026-14899Off-by-one out of bounds read in MIME header parser for forwarding7.5Jul 22, 2026
• CVE-2026-16361Memory safety bugs fixed in Thunderbird ESR 140.139.8Jul 21, 2026
• CVE-2026-16360Memory safety bugs fixed in Firefox ESR 115.38, Firefox ESR 140.13 and Firefox 1539.8Jul 21, 2026
• CVE-2026-16412Memory safety bugs fixed in Firefox ESR 140.13 and Firefox 1539.8Jul 21, 2026
• CVE-2026-16411Memory safety bugs fixed in Firefox 1539.8Jul 21, 2026
• CVE-2026-16410JIT miscompilation in the JavaScript Engine: JIT component9.8Jul 21, 2026
• CVE-2026-16409Invalid pointer in the Security: PSM component7.5Jul 21, 2026
• CVE-2026-16408Integer overflow in the Audio/Video: Playback component9.8Jul 21, 2026
• CVE-2026-16407Mitigation bypass in the DOM: Service Workers component9.8Jul 21, 2026
• CVE-2026-16406Mitigation bypass in the Networking component9.1Jul 21, 2026
• CVE-2026-16405Information disclosure in the Networking: WebSockets component7.5Jul 21, 2026
• CVE-2026-16404Spoofing issue in Firefox for Android7.4Jul 21, 2026
• CVE-2026-16403Spoofing issue in the Address Bar component6.5Jul 21, 2026
• CVE-2026-16402Integer overflow in the Graphics: ImageLib component9.8Jul 21, 2026