Stack-based Buffer Overflow Affecting libxml2 package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (21st percentile)

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  • Snyk IDSNYK-CONAN-LIBXML2-10674193
  • published10 Jul 2025
  • disclosed12 Jun 2025
  • creditAhmed Lekssays

Introduced: 12 Jun 2025

CVE-2025-6021  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the xmlBuildQName function. An attacker can cause a crash and denial of service by supplying specially crafted XML input that triggers an integer overflow and subsequent stack buffer overflow.

CVSS Base Scores

version 4.0
version 3.1