Vulnerability · Published Apr 1, 2025 · Assigned by mozilla

CVE-2025-3028Use-after-free triggered by XSLTProcessor

Medium 6.5

In plain English

A medium-severity use-after-free in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.9%top 41.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. This vulnerability was fixed in Firefox 137, Firefox ESR 115.22, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8firefox128.9.0-2.el8_10ALSA-2025:3582
AlmaLinux:9firefox128.9.0-2.el9_5ALSA-2025:3556
AlmaLinux:9firefox-x11128.9.0-2.el9_5ALSA-2025:3556
AlmaLinux:8thunderbird128.9.0-2.el8_10.alma.1ALSA-2025:4170
AlmaLinux:9thunderbird128.9.0-2.el9_5.alma.1ALSA-2025:4169
Debian:12firefox-esr128.9.0esr-1~deb12u1DEBIAN-CVE-2025-3028
Debian:12firefox-esr128.9.0esr-1~deb12u1DSA-5889-1
Debian:13firefox-esr128.9.0esr-1DEBIAN-CVE-2025-3028
Debian:14firefox-esr128.9.0esr-1DEBIAN-CVE-2025-3028
Debian:12thunderbird1:128.9.0esr-1~deb12u1DEBIAN-CVE-2025-3028
Debian:12thunderbird1:128.9.0esr-1~deb12u1DSA-5891-1
Debian:13thunderbird1:128.9.0esr-1DEBIAN-CVE-2025-3028
Debian:14thunderbird1:128.9.0esr-1DEBIAN-CVE-2025-3028
Rocky Linux:8firefox0:128.9.0-2.el8_10RLSA-2025:3582
Rocky Linux:8thunderbird0:128.9.0-2.el8_10RLSA-2025:4170
Ubuntu:22.04:LTSmozjs102no fix listedUBUNTU-CVE-2025-3028
Ubuntu:24.04:LTSmozjs102no fix listedUBUNTU-CVE-2025-3028
Ubuntu:24.04:LTSmozjs115no fix listedUBUNTU-CVE-2025-3028
Ubuntu:22.04:LTSmozjs78no fix listedUBUNTU-CVE-2025-3028
Ubuntu:22.04:LTSmozjs91no fix listedUBUNTU-CVE-2025-3028
Ubuntu:22.04:LTSthunderbird1:128.12.0+build1-0ubuntu0.22.04.1UBUNTU-CVE-2025-3028
Ubuntu:22.04:LTSthunderbird1:128.12.0+build1-0ubuntu0.22.04.1USN-7663-1

Affected products (as reported)

VendorProductVersions
Mozilla Firefox see references
Mozilla Thunderbird see references

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

References