Known Vulnerabilities for Firefox by Mozilla

Listed below are 10 of the newest known vulnerabilities associated with "Firefox" by "Mozilla".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-53900 json Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in TemporaryDocument, all... Not Provided 2026-06-16 2026-06-16
CVE-2026-53899 json Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix do... Not Provided 2026-06-16 2026-06-16
CVE-2026-45173 json Idira Identity Browser Extension (Chrome, Firefox, and Edge builds) versions prior to 26.8.1 exhibit an origin validation fla... Not Provided 2026-06-11 2026-06-12
CVE-2026-44659 json Zen is a firefox-based browser. Prior to 1.19.12b, the ZEN Browser incorrectly truncates long hostnames in the address bar an... Not Provided 2026-05-11 2026-05-12
CVE-2026-44658 json Zen is a firefox-based browser. Prior to 1.19.12b, RSS feed URLs entered by the user are validated to http: or https: in prom... Not Provided 2026-05-11 2026-05-11
CVE-2026-42177 json linux-entra-sso is a browser plugin for Linux to SSO on Microsoft Entra ID. Prior to 1.8.1, platform/chrome/js/platform-chrom... Not Provided 2026-05-12 2026-05-13
CVE-2026-41431 json Zen is a firefox-based browser. Prior to 1.19.9b, Zen Browser ships a Mozilla Application Resource (MAR) updater (org.mozilla... Not Provided 2026-05-11 2026-05-11
CVE-2026-24869 json Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability was fixed in Firefox 147.0.2. Not Provided 2026-01-27 2026-04-13
CVE-2026-24868 json Mitigation bypass in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 147.0.2. Not Provided 2026-01-27 2026-04-13
CVE-2026-12330 json Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Fire... Not Provided 2026-06-16 2026-06-16
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationMozillaFirefox9.0.1
ApplicationMozillaFirefox9.0
ApplicationMozillaFirefox84.0
ApplicationMozillaFirefox84.0
ApplicationMozillaFirefox83.0
ApplicationMozillaFirefox82.0
ApplicationMozillaFirefox81.0
ApplicationMozillaFirefox80.0
ApplicationMozillaFirefox80.0
ApplicationMozillaFirefox80.0
ApplicationMozillaFirefox8.0.1
ApplicationMozillaFirefox8.0
ApplicationMozillaFirefox79.0
ApplicationMozillaFirefox78.0.2
ApplicationMozillaFirefox78.0.1
ApplicationMozillaFirefox78.0
ApplicationMozillaFirefox77.0.1
ApplicationMozillaFirefox77.0
ApplicationMozillaFirefox76.0.1
ApplicationMozillaFirefox76.0
Results limited to 20 most recent known configurations
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