CVE-2025-49710

critical

Description

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

References

https://www.securityweek.com/chrome-firefox-updates-resolve-high-severity-memory-bugs/

https://www.mozilla.org/security/advisories/mfsa2025-47/

https://bugzilla.mozilla.org/show_bug.cgi?id=1970095

Details

Source: Mitre, NVD

Published: 2025-06-11

Updated: 2025-06-16

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.00043