AUGUST 21, 2026
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Case File

CVE-2026-74983

HIGH · CVSS 8.1 EPSS 0.33%

Source: NVD + CISA KEV + EPSS · Published 2026-08-18 · Last synced 2026-08-21

CyberRota Analysis

AI-Generated

A mitigation bypass vulnerability exists in the Data Loss Prevention component of Firefox, potentially allowing unauthorized data access or exfiltration. Users of affected Firefox versions should prioritize updating to Firefox 154, Firefox ESR 140.14, or Firefox ESR 153.1 to mitigate the risk. Organizations relying on Firefox for secure browsing should address this issue promptly to protect sensitive information.

CVE
CVE-2026-74983
Severity
HIGH
CVSS
8.1
EPSS
0.33%
Firefox

Original NVD Description

Mitigation bypass in the Data Loss Prevention component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-75874 CRITICAL CVE-2026-74990 CRITICAL CVE-2026-74989 CRITICAL CVE-2026-74988 CRITICAL CVE-2026-74987 CRITICAL CVE-2026-74979 CRITICAL