CVE-2021-34193

moderate-risk
Published 2023-08-22

Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.

Do I need to act?

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0.52% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Opensc Project

References (25)

Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28768
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28855
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29912
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30800
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31448
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31540
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28768
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28855
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29912
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112
and 5 more references
33
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal