OCTOBER 8, 2026
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Case File

CVE-2026-100784

HIGH · CVSS 8.8 EPSS 0.32%

Source: NVD + CISA KEV + EPSS · Published 2026-09-29 · Last synced 2026-10-08

CyberRota Analysis

AI-Generated

A use-after-free vulnerability in the Layout: Text and Fonts component of Firefox could allow an attacker to execute arbitrary code, potentially compromising user systems. Organizations and users utilizing affected versions of Firefox should prioritize updating to the patched releases (Firefox ESR 153.4, 157, 115.42, and 140.17) to mitigate the risk of exploitation.

CVE
CVE-2026-100784
Severity
HIGH
CVSS
8.8
EPSS
0.32%
Firefox

Original NVD Description

Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-96869 MEDIUM CVE-2026-100832 HIGH CVE-2026-100823 MEDIUM CVE-2026-100820 HIGH CVE-2026-100819 CRITICAL CVE-2026-100818 CRITICAL