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CVE Vulnerability Details :
CVE-2026-40510
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-29 May, 2026 | 13:26
Updated At-29 May, 2026 | 13:39
Rejected At-
▼CVE Numbering Authority (CNA)
OpenSC < 0.27.0-rc1 Stack Buffer Overflow via piv_process_history() in card-piv.c

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 Products
Vendor
OpenSC
Product
OpenSC
Repo
https://github.com/OpenSC/OpenSC
Default Status
affected
Versions
Affected
  • From 0 before 0.27.0-rc1 (semver)
  • From 0 before 3f24f0b48a481a8cf2e46059d8238a283ddc1c13 (git)
Problem Types
TypeCWE IDDescription
CWECWE-121Stack-based Buffer Overflow
Type: CWE
CWE ID: CWE-121
Description: Stack-based Buffer Overflow
Metrics
VersionBase scoreBase severityVector
4.01.0LOW
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
3.13.8LOW
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Version: 4.0
Base score: 1.0
Base severity: LOW
Vector:
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
Version: 3.1
Base score: 3.8
Base severity: LOW
Vector:
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Nicholas Carlini of Anthropic
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/OpenSC/OpenSC/pull/3558
issue-tracking
https://github.com/OpenSC/OpenSC/commit/3f24f0b48a481a8cf2e46059d8238a283ddc1c13
patch
https://www.vulncheck.com/advisories/opensc-stack-buffer-overflow-via-piv-process-history-in-card-piv-c
third-party-advisory
Hyperlink: https://github.com/OpenSC/OpenSC/pull/3558
Resource:
issue-tracking
Hyperlink: https://github.com/OpenSC/OpenSC/commit/3f24f0b48a481a8cf2e46059d8238a283ddc1c13
Resource:
patch
Hyperlink: https://www.vulncheck.com/advisories/opensc-stack-buffer-overflow-via-piv-process-history-in-card-piv-c
Resource:
third-party-advisory
Details not found