OCTOBER 8, 2026
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Case File

CVE-2026-100776

HIGH · CVSS 8.8 EPSS 0.31%

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 JavaScript: WebAssembly component affects Firefox and Java, potentially allowing attackers to execute arbitrary code or crash the application. Organizations using these products should prioritize patching to mitigate the risk of exploitation, especially those with web-facing applications or services. Users should update to Firefox ESR 153.4, Firefox 157, or Firefox ESR 140.17 to ensure protection against this high-severity issue.

CVE
CVE-2026-100776
Severity
HIGH
CVSS
8.8
EPSS
0.31%
Firefox Java

Original NVD Description

Use-after-free in the JavaScript: WebAssembly 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

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