CVE-2025-13151

7.5 highEPSS 1.4%

High (7.5) in gnu libtasn1. EPSS 1.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2026-01-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gnu:libtasn1

References

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

Check your stack JSON