5.3

CVE-2021-42780: fedoraproject fedora Unchecked Return Value

CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2021-42780DEBIAN-CVE-2021-42780
Published 18-04-2022Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2021-42780 is a medium (CVSS 5.3) Unchecked Return Value vulnerability in fedoraproject fedora. EPSS estimates a 2.14% chance of exploitation in the next 30 days, higher than 81.8% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
2.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 7
DLA-3463-1DLA-4004-1MGASA-2021-0512OPENSUSE-SU-2024:11613-1SUSE-SU-2021:14835-1SUSE-SU-2021:3582-1

Timeline

  1. 18-04-2022
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could potentially crash programs using the library.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.14%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

0.00 pp

From 2.14% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • opensc< 0.22.0-1
Fedoraproject1 product
Opensc_project1 product
Redhat1 product
Ubuntu1 product
  • opensc< 0.15.0-1ubuntu1+esm2 | < 0.17.0-3ubuntu0.1~esm2 | < 0.20.0-3ubuntu0.1~esm4

5 vendors · 5 products

References

13 links
Show all 13 references