Vulnerability Intelligence Report
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.
No Active Exploit Signals
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:1.11%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Weaknesses (CWE)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| GnuTLS | libtasn1 | 0 <= 4.20.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
1.109%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | CERT/CC · CERT · USA |
| Reserved | 2025-11-13T21:14:53 |
| Published | 2026-01-07T21:14:05 |
| Last Updated | 2026-01-20T17:08:41 |
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