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CVE-2025-66037

nvd nist
Published: Mar 30, 2026Modified: Jun 17, 2026

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6.8
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 0.9 / Impact: 5.9
Source: NVD

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 (1)

Opensc Project
1 product
Opensc
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Opensc
Before 0.27.0

Related CWEs

CWE-125
Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.

References (2)

Source: security-advisories@github.com
ExploitVendor Advisory
Source: security-advisories@github.com
Vendor Advisory

Timeline

No history available yet.