Known Vulnerabilities for Firefox Esr by Mozilla

Listed below are 10 of the newest known vulnerabilities associated with "Firefox Esr" 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-2026-121843 json Privilege escalation in Firefox for iOS. This vulnerability was fixed in Firefox for iOS 160.0. Not Provided 2026-11-09 2026-11-10
CVE-2026-121842 json Privilege escalation in the Reader View component in Firefox for iOS. This vulnerability was fixed in Firefox for iOS 160.0. Not Provided 2026-11-09 2026-11-10
CVE-2026-121841 json Other issue in Firefox for iOS. This vulnerability was fixed in Firefox for iOS 160.0. Not Provided 2026-11-09 2026-11-09
CVE-2026-120627 json The Private Internet Access Extension for Firefox contains an unguarded onAuthRequired authentication handler, leading to lea... Not Provided 2026-11-02 2026-11-06
CVE-2026-120572 json Incorrect boundary conditions in the Layout: Block and Inline component. This vulnerability was fixed in Firefox 159.0.1. Not Provided 2026-11-03 2026-11-03
CVE-2026-118027 json Frame poisoning in the Layout component. This vulnerability was fixed in Firefox ESR 115.44. Not Provided 2026-10-27 2026-11-04
CVE-2026-118026 json Invalid pointer in the JavaScript: GC component. This vulnerability was fixed in Firefox 159 and Thunderbird 159. Not Provided 2026-10-27 2026-11-05
CVE-2026-118025 json Other issue in the SVG component. This vulnerability was fixed in Firefox 159 and Thunderbird 159. Not Provided 2026-10-27 2026-11-05
CVE-2026-118024 json Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 159 and Thunderbird 159. Not Provided 2026-10-27 2026-11-05
CVE-2026-118023 json Sandbox escape due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 159 and Th... Not Provided 2026-10-27 2026-11-05
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationMozillaFirefox Esr78.6.0
ApplicationMozillaFirefox Esr78.4.0
ApplicationMozillaFirefox Esr78.3
ApplicationMozillaFirefox Esr78.2
ApplicationMozillaFirefox Esr78.1
ApplicationMozillaFirefox Esr78.0
ApplicationMozillaFirefox Esr68.9.0
ApplicationMozillaFirefox Esr68.8.0
ApplicationMozillaFirefox Esr68.7.0
ApplicationMozillaFirefox Esr68.6.1
ApplicationMozillaFirefox Esr68.6.0
ApplicationMozillaFirefox Esr68.5.0
ApplicationMozillaFirefox Esr68.4.1
ApplicationMozillaFirefox Esr68.4.0
ApplicationMozillaFirefox Esr68.4
ApplicationMozillaFirefox Esr68.3.0
ApplicationMozillaFirefox Esr68.3
ApplicationMozillaFirefox Esr68.12
ApplicationMozillaFirefox Esr68.11.0
ApplicationMozillaFirefox Esr68.11
Results limited to 20 most recent known configurations

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