Allocation of Resources Without Limits or Throttling Affecting thunderbird package, versions <1:140.9.0esr-1~deb12u1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
1.32% (69th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIAN12-THUNDERBIRD-15800145
  • published28 Mar 2026
  • disclosed15 Sept 2025

Introduced: 15 Sep 2025

CVE-2025-59375  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Debian:12 thunderbird to version 1:140.9.0esr-1~deb12u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

CVSS Base Scores

version 3.1