CVE-2021-42781
5.3
MEDIUM
CVSS 3.1
EPSS 0.12%
Description
Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the library.
How to fix CVE-2021-42781
To remediate CVE-2021-42781, upgrade the affected package to a fixed version below.
- Debian/opensc—upgrade to 0.21.0-1+deb11u1 or later
Is CVE-2021-42781 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.21.0-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |