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CVE-2025-13151

7.5 · HIGH
Published Jan 7, 2026 gnu CWE-787

Overview

CVE-2025-13151 is a high-severity vulnerability affecting gnu libtasn1. It was published on January 7, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

Stack-based buffer overflow in libtasn1 version: v4.20.0. The function fails to validate the size of input data resulting in a buffer overflow in asn1_expend_octet_string.

Remediation

Check the references section for vendor advisories and patches from gnu. Update libtasn1 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status

References

Ref gitlab.com/gnutls/libtasn1 Ref gitlab.com/gnutls/libtasn1/-/merge_requests/121 Ref www.openwall.com/lists/oss-security/2026/01/08/5 Ref www.kb.cert.org/vuls/id/271649

Frequently Asked Questions

What is CVE-2025-13151?

CVE-2025-13151 is a high-severity vulnerability affecting gnu libtasn1. It was published on January 7, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-13151?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-13151?

Check the references section for vendor advisories and patches from gnu. Update libtasn1 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-13151?

CyberStrike's AI-powered security agents can automatically detect CVE-2025-13151 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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