CVE-2021-34193 - CVE House
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Status published High CVE-2021-34193

Stack overflow vulnerability in OpenSC smart card middleware before 0.23...

Vulnerability Description

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

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from opensc project

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The TCOS smart card software driver in OpenSC before 0.21.0-rc1...
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CVE-2020-26571
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CVE-2020-26570
The Oberthur smart card software driver in OpenSC before 0.21.0-rc1...
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CVE-2019-6502
sc_context_create in ctx.c in libopensc in OpenSC 0.19.0 has a...
High 7.5
CVE-2019-20792
OpenSC before 0.20.0 has a double free in coolkey_free_private_data because...
Medium 6.8

Affected Vendor

opensc project

View all reports →

Affected Software

opensc
Vulnerable Versions:
0

Timeline

Official Publish: August 22nd, 2023
Last Modified: November 3rd, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.