CVE-2025-3030CWE-416

CVE-2025-3030

High · published April 1, 2025

CVSS v3.1

8.1

EPSS

Percentile

42.1

In the wild

Unconfirmed

What it is

Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.

The record

Technical detail

CVSS v3.1: 8.1 · HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0: Not supplied
EPSS: 0.00503 · 42.1th percentile
Weakness: CWE-416 · Use After Free
Published: 2025-04-01T17:15Z

Affected products (4)

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

References (6)

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1850615%2C1932468%2C1942551%2C1951017%2C1951494 · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-20/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-22/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-23/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-24/ · [email protected]https://lists.debian.org/debian-lts-announce/2025/04/msg00005.html · af854a3a-2127-422b-91ae-364da2661108

EPSS history

Timeline

01 APR 12:29Z
Memory safety bugs fixed in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9
cvelistv5