CVE-2025-1931CWE-416

CVE-2025-1931

High · published March 4, 2025

CVSS v3.1

7.5

EPSS

Percentile

44.6

In the wild

Unconfirmed

What it is

It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

The record

Technical detail

CVSS v3.1: 7.5 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0: Not supplied
EPSS: 0.00538 · 44.6th percentile
Weakness: CWE-416 · Use After Free
Published: 2025-03-04T19:15Z

Affected products (5)

Product	Versions	Fixed in
mozilla/firefox	< 115.21.0	115.21.0
mozilla/firefox	< 136.0	136.0
mozilla/firefox	≥ 116.0, < 128.8.0	128.8.0
mozilla/thunderbird	< 128.8.0	128.8.0
mozilla/thunderbird	≥ 129.0, < 136.0	136.0

References (7)

https://bugzilla.mozilla.org/show_bug.cgi?id=1944126 · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-14/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-15/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-16/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-17/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-18/ · [email protected]https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html · af854a3a-2127-422b-91ae-364da2661108

EPSS history

Timeline

04 MAR 13:31Z
Use-after-free in WebTransportChild
cvelistv5