5.8

CVE-2021-4043: debian debian_linux NULL Pointer Dereference

CVSS: 5.8v3.0MediumModified
AliasesUBUNTU-CVE-2021-4043DEBIAN-CVE-2021-4043
Published 04-02-2022Last modified 08-11-2024
Open JSON

Vulnerability summary

CVE-2021-4043 is a medium (CVSS 5.8) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 4.61% chance of exploitation in the next 30 days, higher than 91.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.8/10
010
Medium · v3.0 (CVE.org)
EPSS score
4.61%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 1
DSA-5411-1

Timeline

  1. 04-02-2022
    PublishedVulnerability first disclosed.
  2. 08-11-2024
    Last modifiedVulnerability information updated.

Description

NULL Pointer Dereference in GitHub repository gpac/gpac prior to 1.1.0.

CVSS metrics

7 scores · 4 sources · 3 versions

EPSS trend

Probability

4.61%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

0.00 pp

From 4.61% on 19-09-2026

19-09-202619-10-2026
EPSS score
4.61%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (huntr.dev)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian2 products
Gpac2 products
Ubuntu1 product
  • gpacAll versions (No fix recorded)

3 vendors · 5 products

References

7 links