CVE-2026-16402: Vulnerability in Mozilla Firefox
Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
AI Analysis
Technical Summary
An integer overflow vulnerability exists in the Graphics: ImageLib component of Firefox, identified as CVE-2026-16402. This flaw was resolved in Firefox 153. The vulnerability was reported by Kai Martin and is classified with moderate impact. It is part of a broader set of security fixes included in Firefox 153 as documented in the Mozilla Foundation Security Advisory 2026-68. No CVSS score is provided for this specific vulnerability.
Potential Impact
The integer overflow in the ImageLib component could lead to incorrect processing of image data, potentially resulting in application crashes or other unintended behavior. The vendor classifies the impact as moderate. There is no indication of active exploitation in the wild at this time.
Mitigation Recommendations
Users and administrators should update Firefox to version 153 or later, where this vulnerability has been fixed. Since an official fix is available, applying this update is the recommended remediation. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-16402: Vulnerability in Mozilla Firefox
Description
Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
An integer overflow vulnerability exists in the Graphics: ImageLib component of Firefox, identified as CVE-2026-16402. This flaw was resolved in Firefox 153. The vulnerability was reported by Kai Martin and is classified with moderate impact. It is part of a broader set of security fixes included in Firefox 153 as documented in the Mozilla Foundation Security Advisory 2026-68. No CVSS score is provided for this specific vulnerability.
Potential Impact
The integer overflow in the ImageLib component could lead to incorrect processing of image data, potentially resulting in application crashes or other unintended behavior. The vendor classifies the impact as moderate. There is no indication of active exploitation in the wild at this time.
Mitigation Recommendations
Users and administrators should update Firefox to version 153 or later, where this vulnerability has been fixed. Since an official fix is available, applying this update is the recommended remediation. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-8vpq-9f8g-39vm
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-16402"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5fd1541010f89cc21c96eb
Added to database: 07/21/2026, 20:06:44 UTC
Last enriched: 07/22/2026, 17:41:16 UTC
Last updated: 09/02/2026, 22:52:09 UTC
Views: 44
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