CVEvulnerability

CVE-2025-66037

6.8 MEDIUM Published 2026-03-30 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-30
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.9 LOW — CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-125

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.

Affected configurations

• opensc project opensc (< 0.27.0)

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References