Out-of-Bounds Affecting thunderbird package, versions [,128.13)[140.0-b1,140.1)[141.0-b1,141.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (13th 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-UNMANAGED-THUNDERBIRD-10914944
  • published24 Jul 2025
  • disclosed22 Jul 2025
  • creditthe Mozilla Fuzzing Team

Introduced: 22 Jul 2025

NewCVE-2025-8034  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade thunderbird to version 128.13, 140.1, 141.0 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-Bounds due to improper memory management. An attacker can execute arbitrary code by triggering memory corruption through crafted input.

CVSS Base Scores

version 4.0
version 3.1