Out-of-bounds Read Affecting thunderbird package, versions [,128.10)[130.0b1,138.0b1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.08% (26th percentile)

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  • Snyk IDSNYK-UNMANAGED-THUNDERBIRD-10231781
  • published23 May 2025
  • disclosed29 Apr 2025
  • creditIvan Fratric

Introduced: 29 Apr 2025

CVE-2025-4087  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade thunderbird to version 128.10, 138.0b1 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read due to unsafe attribute access during XPath parsing. An attacker can manipulate the output or behavior of the XPath evaluation by crafting malicious XML documents.

CVSS Base Scores

version 4.0
version 3.1