CVE-2025-1942 Affecting firefox package, versions <136.0-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.47% (40th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-9292415
  • published6 Mar 2025
  • disclosed4 Mar 2025

Introduced: 4 Mar 2025

CVE-2025-1942  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox to version 136.0-1 or higher.

NVD Description

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

When String.toUpperCase() caused a string to get longer it was possible for uninitialized memory to be incorporated into the result string. This vulnerability was fixed in Firefox 136 and Thunderbird 136.

CVSS Base Scores

version 3.1