Mmemory safety bugs present in Firefox 109 and Firefox ESR 102.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 110 and Firefox ESR < 102.8.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://www.mozilla.org/security/advisories/mfsa2023-05/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-05/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/ Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.8 · mozillaNVD modified 2026-10-23 23:10
Affected (CPE criteria) 2
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
References 6
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1789449%2C1803628%2C1810536 Broken Link, Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2023-05/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/ Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1789449%2C1803628%2C1810536 Broken Link, Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2023-05/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/ Vendor Advisory