Stack-based Buffer Overflow Affecting libxml2 package, versions [,2.14.4)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published10 Jul 2025
- disclosed12 Jun 2025
- creditAhmed Lekssays
Introduced: 12 Jun 2025
CVE-2025-6021 (opens in a new tab)How to fix?
Upgrade libxml2 to version 2.14.4 or higher.
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.