CVE-2026-40510
1
CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Summary
OpenSC before 0.27.0-rc1, fixed in commit 3f24f0b, contains a stack buffer overflow vulnerability in piv_process_history() in src/libopensc/card-piv.c that allows physically present attackers to trigger memory corruption by presenting a crafted PIV smart card or USB device returning a URL field longer than 118 bytes in the Key History Object ASN.1 response.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OpenSC | OpenSC | 0 < 0.27.0-rc1 | affected |
| OpenSC | OpenSC | 0 < 3f24f0b48a481a8cf2e46059d8238a283ddc1c13 | affected |
Weaknesses
- CWE-121: Stack-based Buffer Overflow
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/OpenSC/OpenSC/pull/3558
- https://github.com/OpenSC/OpenSC/commit/3f24f0b48a481a8cf2e46059d8238a283ddc1c13
- https://www.vulncheck.com/advisories/opensc-stack-buffer-overflow-via-piv-process-history-in-card-piv-c
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