VULNERABILITY INTELLIGENCE
CVE-2026-84141
CVSS score9.8 CRITICAL
EPSS probability0.34%
CISA KEVNot currently listed
Published2026-09-01
Last modified2026-09-03
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
Weakness classification
- nvd@nist.gov: CWE-190
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-190
Primary references
- security@mozilla.org — Issue Tracking
- security@mozilla.org — Vendor Advisory
- security@mozilla.org — Vendor Advisory
- security@mozilla.org — Vendor Advisory
- security@mozilla.org — Vendor Advisory