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Firefox — security advisories

vendor: Mozilla10 advisories6 exploited3 sourceslatest 2026-07-09⚡ RSS feed

Every advisory CSIRTS.com has correlated to Firefox, newest first — across national CERTs, vendor PSIRTs and vulnerability databases.

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[UPDATE] [high] Mozilla Firefox: Multiple vulnerabilities

highCVE-2026-8388 CVE-2026-8389 CVE-2026-8390 CVE-2026-8391cert-bund2026-07-09

[UPDATE] [high] Mozilla Firefox and Thunderbird: Multiple vulnerabilities

highCVE-2026-8388 CVE-2026-8391 CVE-2026-8401 CVE-2026-8706cert-bund2026-07-09

[UPDATE] [high] Mozilla Firefox: Vulnerability allows code execution

highCVE-2026-14241cert-bund2026-07-02

Vulnerability in Mozilla Firefox (July 1, 2026)

unknownCVE-2026-14241cert-fr-avis2026-07-01

CVE-2024-9680: Mozilla Firefox Use-After-Free Vulnerability

criticalexploitedCVE-2024-9680cisa-kev2024-10-15

CVE-2015-4495: Mozilla Firefox Security Feature Bypass Vulnerability

criticalexploitedCVE-2015-4495cisa-kev2022-05-25

CVE-2019-11708: Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability

criticalexploitedCVE-2019-11708cisa-kev2022-05-23

CVE-2022-26486: Mozilla Firefox Use-After-Free Vulnerability

criticalexploitedCVE-2022-26486cisa-kev2022-03-07

CVE-2022-26485: Mozilla Firefox Use-After-Free Vulnerability

criticalexploitedCVE-2022-26485cisa-kev2022-03-07

CVE-2013-1675: Mozilla Firefox Information Disclosure Vulnerability

criticalexploitedCVE-2013-1675cisa-kev2022-03-03