CVE-2026-84118 | CyberRota

CyberRota Analysis

AI-Generated

A use-after-free vulnerability in the JavaScript: GC component affects Firefox and Java, potentially allowing attackers to execute arbitrary code or crash the application. Users of these products, particularly those running versions prior to Firefox 155 and Firefox ESR 153.2, should prioritize applying the latest updates to mitigate the risk.

CVE

CVE-2026-84118

Severity

MEDIUM

CVSS

5.4

EPSS

0.20%

Firefox Java

Original NVD Description

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-84642 HIGH CVE-2026-84641 HIGH CVE-2026-84640 HIGH CVE-2026-84639 CRITICAL CVE-2026-84637 CRITICAL CVE-2026-84145 HIGH