CVE-2025-13151 | CVE-2025-13151

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.

Published: 2026-01-07 Last update: 2026-02-02 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-13151 is rated Low Risk (35.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-13151

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-13 0.04% 0.05% +0.01%
2 2026-01-08 — 0.04% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-13151

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-13151

OS Trackers for CVE-2025-13151

vendor priority summary link
alpine — CVE-2025-13151: 1 source package rows (libtasn1); 35 state rows across 6 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 5, open 30. https://security.alpinelinux.org/vuln/CVE-2025-13151
debian not yet assigned CVE-2025-13151 not yet assigned priority: Debian including 1 source packages (libtasn1-6), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. https://security-tracker.debian.org/tracker/CVE-2025-13151
redhat low — https://access.redhat.com/security/cve/CVE-2025-13151
suse medium CVE-2025-13151 severity moderate: SUSE including 284 source package names (1.1.0-1.10:libtasn1-4.13-150000.4.14.1, 1.1.0-1.10:libtasn1-6-4.13-150000.4.14.1, …), 764 product×package rows across 265 product lines (Container private-registry/harbor-core, Container private-registry/harbor-exporter, … (265 product lines)): Fixed 530, Known Affected 231, First Fixed 3. https://www.suse.com/security/cve/CVE-2025-13151/
ubuntu medium CVE-2025-13151 medium priority: Ubuntu including 1 source packages (libtasn1-6), 9 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): released 9. https://ubuntu.com/security/CVE-2025-13151

Affected software / configurations for CVE-2025-13151

Vendor Product Version Raw CPE
gnu libtasn1 4.20.0 cpe:2.3:a:gnu:libtasn1:4.20.0:*:*:*:*:*:*:*

References for CVE-2025-13151

cvelogic Threat Intelligence