Stack-based Buffer Overflow Affecting libtasn1 package, versions [,4.21.0)
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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Test your applications- Snyk IDSNYK-UNMANAGED-LIBTASN1-14912639
- published11 Jan 2026
- disclosed7 Jan 2026
- creditBenny Zelster
Introduced: 7 Jan 2026
CVE-2025-13151 (opens in a new tab)How to fix?
Upgrade libtasn1 to version 4.21.0 or higher.
Overview
Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the asn1_expend_octet_string function. An attacker can cause by supplying specially crafted input data that exceeds the expected buffer size.