5.3

CVE-2021-42778: fedoraproject fedora

CVSS: 5.3v3.1MediumModified
AliasesDEBIAN-CVE-2021-42778
Published 18-04-2022Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2021-42778 is a medium (CVSS 5.3) vulnerability in fedoraproject fedora. EPSS estimates a 2.14% chance of exploitation in the next 30 days, higher than 81.7% 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 1 · Related 1
DLA-4004-1UBUNTU-CVE-2021-42778

Timeline

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

Description

A heap double free issue was found in Opensc before version 0.22.0 in sc_pkcs15_free_tokeninfo.

CVSS metrics

3 scores · 2 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 19-09-2026

19-09-202619-10-2026
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

4 vendors · 4 products

References

7 links