Out-of-bounds Write Affecting opensc package, versions <0.22.0-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
2.78% (86th percentile)

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  • Snyk IDSNYK-ECHOLATEST-OPENSC-20360796
  • published1 Oct 2026
  • disclosed18 Apr 2022

Introduced: 18 Apr 2022

CVE-2021-42782  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Echo:latest opensc to version 0.22.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream opensc package and not the opensc package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Stack buffer overflow issues were found in Opensc before version 0.22.0 in various places that could potentially crash programs using the library.

CVSS Base Scores

version 3.1