High severity8.8NVD Advisory· Published Aug 18, 2026· Updated Aug 18, 2026
CVE-2026-74953
CVE-2026-74953
Description
Privilege escalation in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1.
Affected products
1- Range: up to Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1
Patches
Vulnerability mechanics
References
4News mentions
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