PatchTheCVEopensc vulnerabilities and fixes
Recent CVEs affecting opensc, with upgrade or downgrade steps. 2 tracked.
opensc has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-05-29. Highest priority: CVE-2026-40510 (score 19/100).
- CVE-2026-40510 LOW 3.8 UPGRADE OpenSC before 0.27.0-rc1, fixed in commit 3f24f0b, contains a stack buffer overflow vulnerability in piv_proce
- CVE-2026-40528 LOW 3.8 UPGRADE OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the d
FAQ
How do I fix opensc vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is opensc being exploited right now?
None of the tracked opensc CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which opensc CVE should I patch first?
CVE-2026-40510 currently ranks highest (19/100): OpenSC before 0.27.0-rc1, fixed in commit 3f24f0b, contains a stack buffer overflow vulnerability in piv_proce.