CVE-2026-16354: Vulnerability in Mozilla Firefox
Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
AI Analysis
Technical Summary
CVE-2026-16354 is an information disclosure vulnerability affecting the Graphics: ImageLib component in Mozilla Firefox. The issue was reported and fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. The vulnerability could lead to unauthorized information disclosure through the graphics library. Mozilla's security advisories classify the impact as high and confirm the availability of patches in the specified Firefox versions. There is no CVSS score provided, and no known active exploitation has been reported.
Potential Impact
The vulnerability allows information disclosure via the Graphics: ImageLib component, which could expose sensitive data processed or handled by this component. The impact is rated high by the vendor, indicating significant risk if exploited. However, no known exploits in the wild have been reported, reducing immediate risk.
Mitigation Recommendations
Apply the official patches by upgrading to Firefox 153, Firefox ESR 115.38, or Firefox ESR 140.13 or later. These versions contain fixes that address this information disclosure vulnerability. Since the vendor advisory confirms the availability of these fixes, updating to these versions is the recommended remediation. No additional mitigation steps are indicated by the vendor.
CVE-2026-16354: Vulnerability in Mozilla Firefox
Description
Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16354 is an information disclosure vulnerability affecting the Graphics: ImageLib component in Mozilla Firefox. The issue was reported and fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. The vulnerability could lead to unauthorized information disclosure through the graphics library. Mozilla's security advisories classify the impact as high and confirm the availability of patches in the specified Firefox versions. There is no CVSS score provided, and no known active exploitation has been reported.
Potential Impact
The vulnerability allows information disclosure via the Graphics: ImageLib component, which could expose sensitive data processed or handled by this component. The impact is rated high by the vendor, indicating significant risk if exploited. However, no known exploits in the wild have been reported, reducing immediate risk.
Mitigation Recommendations
Apply the official patches by upgrading to Firefox 153, Firefox ESR 115.38, or Firefox ESR 140.13 or later. These versions contain fixes that address this information disclosure vulnerability. Since the vendor advisory confirms the availability of these fixes, updating to these versions is the recommended remediation. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-29g8-xp94-2r42
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-16354"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5fd15e1010f89cc21ca592
Added to database: 07/21/2026, 20:06:54 UTC
Last enriched: 07/22/2026, 17:23:56 UTC
Last updated: 09/01/2026, 22:52:09 UTC
Views: 54
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