OCTOBER 5, 2026
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Case File

CVE-2026-100820

HIGH · CVSS 8.8 EPSS 0.25%

Source: NVD + CISA KEV + EPSS · Published 2026-09-29 · Last synced 2026-10-05

CyberRota Analysis

AI-Generated

A privilege escalation vulnerability exists in the Address Bar component of Firefox, allowing attackers to potentially gain elevated access to system resources. This flaw poses a significant risk to users of affected Firefox versions, particularly in environments where security is critical. Organizations and individuals using these versions should prioritize updating to the patched releases to mitigate potential exploitation.

CVE
CVE-2026-100820
Severity
HIGH
CVSS
8.8
EPSS
0.25%
Firefox

Original NVD Description

Privilege escalation in the Address Bar 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.

Related CVEs

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