MFSA2026-126: Security Vulnerabilities fixed in Firefox ESR 115.45
Published Nov 10, 2026
·Updated
Security Vulnerabilities fixed in Firefox ESR 115.45
Affected Software
1 affected componentFixes available
Mozilla Firefox ESR<115.45
115.45
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 115.45 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 115.45
Event History
Nov 10, 2026
Advisory Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Child vulnerabilities
Contains the following vulnerabilities.
- CVE-2026-109736
- CVE-2026-124853
- CVE-2026-124952
- CVE-2026-124857
- CVE-2026-124858
- CVE-2026-124859
- CVE-2026-124860
- CVE-2026-124861
- CVE-2026-124863
- CVE-2026-124864
- CVE-2026-124865
- CVE-2026-124872
- CVE-2026-124874
- CVE-2026-124875
- CVE-2026-124876
- CVE-2026-124877
- CVE-2026-124880
- CVE-2026-124881
- CVE-2026-124882
- CVE-2026-124885
- CVE-2026-124890
- CVE-2026-124895
- CVE-2026-124898
- CVE-2026-124899
- CVE-2026-124901
- CVE-2026-124902
- CVE-2026-124903
- CVE-2026-124905