3.9
Low
CVE-2025-66037 OpenSC is an open source smart card tools and middleware
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenSC 0.27 | earliest → < 0.27.0 | 0.27.0 |
Other CVEs of OpenSC
The 7 CVEs of OpenSC →
CVE-2026-40528
OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the…
1.0
Low
CVE-2026-40510
OpenSC before 0.27.0-rc1, fixed in commit 3f24f0b, contains a stack buffer overflow vulnerability in…
1.0
Low
CVE-2025-13763
Libopensc: opensc: multiple uses of uninitialized variable
5.7
Medium
CVE-2025-66215
OpenSC is an open source smart card tools and middleware
3.8
Low