CVE-2025-66037
OpenSC: Out of Bounds vulnerability
- State
- Published
- Severity
- 3.9 Low
- Published
- Mar 30, 2026
- Updated
- Mar 30, 2026
- Reserved
- Nov 21, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.9 Low | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L | GitHub_M |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
OpenSCOpenSC |
|
References
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