VULNERABILITY INTELLIGENCE

CVE-2025-4919

CVSS score8.8 HIGH
EPSS probability9.12%
CISA KEVNot currently listed
Published2025-05-17
Last modified2026-09-30
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-125

Primary references