CVE-2026-74942
High · 8.8CVSS
8.8
EPSS
0.5%
Published
Aug 18, 2026
CISA due date
—
The record
Privilege escalation in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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