CVE-2025-13151 — HIGH (7.5)

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gnu	Libtasn1	4.20.0

Related Weaknesses (CWE)

CWE-787

References

https://gitlab.com/gnutls/libtasn1Product
https://gitlab.com/gnutls/libtasn1/-/merge_requests/121Patch
http://www.openwall.com/lists/oss-security/2026/01/08/5Mailing ListPatch
https://www.kb.cert.org/vuls/id/271649Third Party Advisory

FAQ

What is CVE-2025-13151?

CVE-2025-13151 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.

How severe is CVE-2025-13151?

CVE-2025-13151 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-13151?

Check the references section above for vendor advisories and patch information. Affected products include: Gnu Libtasn1.