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
1.28% (67th percentile)

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  • Snyk IDSNYK-ECHOLATEST-THUNDERBIRD-18319426
  • published26 Jul 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 Echo:latest 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 Echo. See How to fix? for Echo:latest 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