OCTOBER 6, 2026
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Case File

CVE-2026-100794

CRITICAL · CVSS 9.6 EPSS 0.34%

Source: NVD + CISA KEV + EPSS · Published 2026-09-29 · Last synced 2026-10-06

CyberRota Analysis

AI-Generated

A vulnerability in the Internationalization component of Firefox allows for a sandbox escape due to incorrect boundary conditions, potentially enabling unauthorized access to system resources. Users and organizations relying on Firefox, particularly those using versions prior to the fixes in Firefox ESR 153.4, Firefox 157, and Firefox ESR 140.17, should prioritize updates to mitigate the risk of exploitation.

CVE
CVE-2026-100794
Severity
CRITICAL
CVSS
9.6
EPSS
0.34%
Firefox

Original NVD Description

Sandbox escape due to incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.