Out-of-bounds Write Affecting thunderbird package, versions [,128.10.2)[130.0b1,138.0.2)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.05% (14th 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-10231778
  • published23 May 2025
  • disclosed17 May 2025
  • creditUnknown

Introduced: 17 May 2025

NewCVE-2025-4918  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade thunderbird to version 128.10.2, 138.0.2 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Write via the resolution of JavaScript Promise objects. An attacker can manipulate memory and potentially lead to code execution or crash the application by triggering an out-of-bounds read or write.

CVSS Base Scores

version 4.0
version 3.1