Low severity3.9NVD Advisory· Published Mar 30, 2026· Updated Apr 1, 2026
CVE-2025-66037
CVE-2025-66037
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.
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Affected products
8cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:*range: <0.27.0
- (no CPE)range: <0.27.0
- osv-coords6 versionspkg:rpm/opensuse/opensc&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/opensc&distro=openSUSE%20Tumbleweedpkg:rpm/suse/opensc&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/opensc&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/opensc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/opensc&distro=SUSE%20Linux%20Micro%206.2
< 0.26.1-160000.3.1+ 5 more
- (no CPE)range: < 0.26.1-160000.3.1
- (no CPE)range: < 0.27.1-1.1
- (no CPE)range: < 0.19.0-150100.3.34.1
- (no CPE)range: < 0.26.1-160000.3.1
- (no CPE)range: < 0.26.1-160000.3.1
- (no CPE)range: < 0.26.1-160000.3.1
Patches
Vulnerability mechanics
References
1- github.com/OpenSC/OpenSC/security/advisories/GHSA-m58q-rmjm-mmfxnvdExploitVendor Advisory
News mentions
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