OpenSC < 0.27.0-rc1 Stack Buffer Overflow via piv_process_history() in card-piv.c
CVE-2026-40510 is a stack buffer overflow vulnerability in OpenSC versions prior to 0. 27. 0-rc1, specifically in the piv_process_history() function within card-piv. c. The vulnerability is categorized under CWE-121, indicating a classic stack-based buffer overflow issue. There is no CVSS score available for this vulnerability, and no known exploits have been reported in the wild. The affected products include Microsoft and Azure Linux versions 3. 0. No patch or remediation information is currently provided, and the vulnerability is not related to a cloud service. The Microsoft Security Response Center is the publisher of this advisory.
AI Analysis
Technical Summary
This vulnerability involves a stack buffer overflow in the piv_process_history() function of OpenSC versions before 0.27.0-rc1, as identified by CVE-2026-40510. It affects Microsoft and Azure Linux 3.0 products. The issue is classified under CWE-121, which pertains to stack-based buffer overflows. No CVSS score or patch information is currently available, and no known exploits have been reported. The advisory is published by the Microsoft Security Response Center. Due to the lack of detailed impact or remediation data, the exact risk and mitigation status remain unclear.
Potential Impact
The vulnerability is a stack buffer overflow, which generally can lead to memory corruption and potentially arbitrary code execution. However, no specific impact details or exploitation reports are available. No known exploits in the wild have been reported. Without further details or a CVSS score, the precise impact severity is undetermined.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time. Users should monitor the Microsoft Security Response Center for updates and apply any future patches promptly once available.
OpenSC < 0.27.0-rc1 Stack Buffer Overflow via piv_process_history() in card-piv.c
Description
CVE-2026-40510 is a stack buffer overflow vulnerability in OpenSC versions prior to 0. 27. 0-rc1, specifically in the piv_process_history() function within card-piv. c. The vulnerability is categorized under CWE-121, indicating a classic stack-based buffer overflow issue. There is no CVSS score available for this vulnerability, and no known exploits have been reported in the wild. The affected products include Microsoft and Azure Linux versions 3. 0. No patch or remediation information is currently provided, and the vulnerability is not related to a cloud service. The Microsoft Security Response Center is the publisher of this advisory.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a stack buffer overflow in the piv_process_history() function of OpenSC versions before 0.27.0-rc1, as identified by CVE-2026-40510. It affects Microsoft and Azure Linux 3.0 products. The issue is classified under CWE-121, which pertains to stack-based buffer overflows. No CVSS score or patch information is currently available, and no known exploits have been reported. The advisory is published by the Microsoft Security Response Center. Due to the lack of detailed impact or remediation data, the exact risk and mitigation status remain unclear.
Potential Impact
The vulnerability is a stack buffer overflow, which generally can lead to memory corruption and potentially arbitrary code execution. However, no specific impact details or exploitation reports are available. No known exploits in the wild have been reported. Without further details or a CVSS score, the precise impact severity is undetermined.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time. Users should monitor the Microsoft Security Response Center for updates and apply any future patches promptly once available.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-40510
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a1ca158e29bf47b505e1f64
Added to database: 5/31/2026, 9:00:08 PM
Last enriched: 5/31/2026, 9:02:22 PM
Last updated: 6/2/2026, 7:40:24 AM
Views: 9
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.