CVE-2025-49710

CriticalCVSS 9.8/10Last modified Oct 23, 2026

Description

An integer overflow was present in `OrderedHashTable` used by the JavaScript engine. This vulnerability was fixed in Firefox 139.0.4.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-190

Affected software

VendorProductVersions
MozillaFirefox—

References

Timeline

Published
Jun 11, 2025
Last modified
Oct 23, 2026
NVD status
Modified

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CVE-2025-49710: Critical severity, CVSS 9.8 | Vulnix