Description

OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, feeding a crafted input to the fuzz_pkcs15_reader harness causes OpenSC to perform an out-of-bounds heap read in the X.509/SPKI handling path. Specifically, sc_pkcs15_pubkey_from_spki_fields() allocates a zero-length buffer and then reads one byte past the end of that allocation. This issue has been patched in version 0.27.0.

INFO

Published Date :

2026-03-30T17:01:27.790Z

Last Modified :

2026-03-30T20:14:39.203Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-66037 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-66037.

URL Resource
https://github.com/OpenSC/OpenSC/security/advisories/GHSA-m58q-rmjm-mmfx cve-icon cve-icon cve-icon
https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66037 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-66037 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-66037 cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact