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CVE-2026-84141Integer overflow in the Graphics: ImageLib component
Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
9.8 CRITICALEPSS 0.34%Not in KEVNVD: Modified
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.8 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Details
- CVE ID
- CVE-2026-84141
- Status
- Modified
- Assigner (CNA)
- mozilla
- Published
- Sep 1, 2026
- Last modified
- 2026-09-03 18:17 UTC
- Weaknesses
Affected Products
As published by the CNA in the CVE record.
MozillaFirefox0 version ranges
No version detail published.
MozillaThunderbird0 version ranges
No version detail published.
References
- bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=2063994
- mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-82/
- mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-85/
- mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-86/
- mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-88/