SEPTEMBER 19, 2026
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Case File

CVE-2026-74955

HIGH · CVSS 8.8 EPSS 0.22%

Source: NVD + CISA KEV + EPSS · Published 2026-08-18 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

A privilege escalation vulnerability in the Request Handling component of Firefox allows attackers to gain elevated permissions, potentially compromising system integrity. Users of affected Firefox versions should prioritize updates to Firefox 154 or Firefox ESR 153.1 to mitigate the risk of exploitation. This issue is particularly critical for organizations relying on Firefox for secure browsing.

CVE
CVE-2026-74955
Severity
HIGH
CVSS
8.8
EPSS
0.22%
Firefox

Original NVD Description

Privilege escalation in the Request Handling component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Related CVEs

Other vulnerabilities affecting the same vendor(s)