CVE-2025-13016CWE-703

CVE-2025-13016

High · published November 11, 2025

CVSS v3.1

7.5

EPSS

Percentile

34.3

In the wild

Unconfirmed

What it is

Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.

The record

Technical detail

CVSS v3.1: 7.5 · HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0: Not supplied
EPSS: 0.00411 · 34.3th percentile
Weakness: CWE-703 · Improper Check or Handling of Exceptional Conditions
Published: 2025-11-11T21:15Z

Affected products (2)

Product	Versions	Fixed in
mozilla/firefox	< 140.5.0	140.5.0
mozilla/firefox	< 145.0	145.0

References (5)

https://bugzilla.mozilla.org/show_bug.cgi?id=1992130 · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-87/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-88/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-90/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-91/ · [email protected]

EPSS history

Timeline

11 NOV 15:47Z
Incorrect boundary conditions in the JavaScript: WebAssembly component
cvelistv5