OpenSC: Out of Bounds vulnerability_CVE-2025-66037

3.9 / 10

LOW

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

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.

Basic Information

ID CVE-2025-66037

Source GitHub_M

Published Mar 30, 2026 at 17:01

Modified Mar 30, 2026 at 20:14

Affected Product

Vendor OpenSC

Product OpenSC

Version < 0.27.0

Affected Versions OpenSC OpenSC < 0.27.0

CWE Classification

CWE-125

References

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    "published": "2026-03-30T17:01:27.790Z",
    "modified": "2026-03-30T20:14:39.203Z",
    "type": "cve",
    "title": "OpenSC: Out of Bounds vulnerability",
    "source": "GitHub_M",
    "references": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-m58q-rmjm-mmfx\nhttps://github.com/OpenSC/OpenSC/wiki/CVE-2025-66037",
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