CVE-2025-13151
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Gnu Libtasn1
PublishedJan 7, 2026
First seenJan 7, 2026
Weakness typeCWE-120CWE-120CWE-121CWE-121
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu libtasn1 | 4.20.0 | — |
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