DoS via ImageLib in Firefox 152 & ESR 140.12/115.37 (fixed)
CVE-2026-12325 Published on June 16, 2026
Denial-of-service in the Graphics: ImageLib component
Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Vulnerability Analysis
CVE-2026-12325 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2026-12325 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2026-12325
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Affected Versions
Mozilla Firefox:- Version 115.37, <= 115.* is unaffected.
- Version 140.12, <= 140.* is unaffected.
- Version 152, <= * is unaffected.
- Version 140.12, <= 140.* is unaffected.
- Version 152, <= * is unaffected.