CVE-2025-13151

HIGH EPSS 61.8%
Published Jan 7, 20265mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jan 7, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
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

Threat Intelligence

EPSS Exploit Probability
61.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
gnulibtasn14.20.0any

References 4

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

Remediation

  • openwall.com http://www.openwall.com/lists/oss-security/2026/01/08/5
    Mailing ListPatch
  • gitlab.com https://gitlab.com/gnutls/libtasn1/-/merge_requests/121
    Patch