Unrated severityNVD Advisory· Published Sep 1, 2026

CVE-2026-84144

Description

Internally found bugs present in Firefox 154 and Firefox ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.

Affected products

Mozilla Corporation/Firefoxllm-fuzzy
Range: 154

Patches

Vulnerability mechanics

References

bugzilla.mozilla.org/buglist.cginvd
bugzilla.mozilla.org/buglist.cginvd
bugzilla.mozilla.org/buglist.cginvd
www.mozilla.org/security/advisories/mfsa2026-82/nvd
www.mozilla.org/security/advisories/mfsa2026-85/nvd

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000