OpenSC < 0.27.0 Buffer Overrun in do_key_value() via profile.c
CVE-2026-40528 is a buffer overrun vulnerability in OpenSC versions prior to 0. 27. 0, specifically in the do_key_value() function within profile. c. The vulnerability is categorized under CWE-121, indicating a stack-based buffer overflow. No CVSS score is provided, and there are no known exploits in the wild. The affected products include Microsoft and Azure Linux versions 3. 0. No patch or remediation information is currently available from the vendor advisory. The vulnerability could potentially allow memory corruption, but specific impact details are not provided.
AI Analysis
Technical Summary
This vulnerability involves a buffer overrun in the do_key_value() function of OpenSC versions before 0.27.0, as identified by CVE-2026-40528. It is classified as a stack-based buffer overflow (CWE-121). The affected products include Microsoft and Azure Linux 3.0. There is no CVSS score or detailed impact analysis available, and no known exploits have been reported. No patch or official remediation guidance has been provided by the Microsoft Security Response Center at this time.
Potential Impact
The vulnerability is a stack-based buffer overflow which could lead to memory corruption. However, no specific impact details such as code execution, privilege escalation, or denial of service are provided in the available data. There are no known exploits in the wild, and the severity of impact is not explicitly stated by the vendor.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is available, monitor the Microsoft Security Response Center for updates. Avoid using affected versions if possible until a fix is released.
OpenSC < 0.27.0 Buffer Overrun in do_key_value() via profile.c
Description
CVE-2026-40528 is a buffer overrun vulnerability in OpenSC versions prior to 0. 27. 0, specifically in the do_key_value() function within profile. c. The vulnerability is categorized under CWE-121, indicating a stack-based buffer overflow. No CVSS score is provided, and there are no known exploits in the wild. The affected products include Microsoft and Azure Linux versions 3. 0. No patch or remediation information is currently available from the vendor advisory. The vulnerability could potentially allow memory corruption, but specific impact details are not provided.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a buffer overrun in the do_key_value() function of OpenSC versions before 0.27.0, as identified by CVE-2026-40528. It is classified as a stack-based buffer overflow (CWE-121). The affected products include Microsoft and Azure Linux 3.0. There is no CVSS score or detailed impact analysis available, and no known exploits have been reported. No patch or official remediation guidance has been provided by the Microsoft Security Response Center at this time.
Potential Impact
The vulnerability is a stack-based buffer overflow which could lead to memory corruption. However, no specific impact details such as code execution, privilege escalation, or denial of service are provided in the available data. There are no known exploits in the wild, and the severity of impact is not explicitly stated by the vendor.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is available, monitor the Microsoft Security Response Center for updates. Avoid using affected versions if possible until a fix is released.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-40528
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a1ca15be29bf47b505e2151
Added to database: 5/31/2026, 9:00:11 PM
Last enriched: 5/31/2026, 9:02:33 PM
Last updated: 6/2/2026, 5:03:02 AM
Views: 15
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