CVE-2025-3028 Affecting firefox-esr package, versions <115.22-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.82% (53rd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOXESR-17764602
  • published1 Jul 2026
  • disclosed1 Apr 2025

Introduced: 1 Apr 2025

CVE-2025-3028  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox-esr to version 115.22-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1