What is the severity of CVE-2021-4043?

CVE-2021-4043 has a CVSS Base Score of 5.5/10 and is classified as Medium severity. It is important to assess the risk based on your specific environment.

How do I fix CVE-2021-4043?

Remediation typically involves updating the affected software products to the latest patched version. Refer to the 'Affected Products' and 'Remediation' sections on this page for specific mitigation steps and vendor advisories.

Home→Vulnerabilities→CVE-2021-4043

Active Exploitation

CVE-2021-4043

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

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Confirmed Active Exploitation

This vulnerability is listed in the CISA KEV Catalog. Federal agencies are mandated to patch immediately. Immediate remediation is required.

Exploitation Probability (EPSS)

Low Priority

1.46%

The Exploit Prediction Scoring System (EPSS) uses machine learning to estimate the probability that a vulnerability will be exploited in the wild within the next 30 days.

0% (Theoretical)100% (Certainty)

7-Day Exploitation Trend

Vulnerability Timeline

2 events

Feb 4, 2022

Vulnerability Disclosed

Published to component-level vulnerability database.

Nov 8, 2024

Last Updated

Record updated with new analysis or tags.

Threat Actor Attribution

PREMIUM INTEL

Associated Groups:Lazarus Group, APT28

Ransomware Campaigns:LockBit 3.0, BlackCat

IoCs (Indicators):14 IPs, 3 Hashes

Remediation & Mitigation

SOLUTION

Official patches and mitigation steps are available for this vulnerability.

# Update Command
apt-get update && apt-get upgrade -y specific-package
# Verify installation
dpkg -l | grep package-name

Affected Products

2 Total

gpac/gpacAll Versions

debian/debian_linux11.0

References

https://github.com/gpac/gpac/commit/64a2e1b799352ac7d7aad1989bc06e7b0f2b01dbGitHub

PatchThird Party Advisory

https://huntr.dev/bounties/d7a534cb-df7a-48ba-8ce3-46b1551a9c47Huntr

ExploitIssue TrackingThird Party Advisory

https://www.debian.org/security/2023/dsa-5411Debian

Mailing ListThird Party Advisory

Am I Vulnerable?

Check your domain or package.json for CVE-2021-4043 exposure.

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Vulnerability Details

CVSS Base Score

5.5/ 10

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Published Date

Feb 4, 2022

Last Modified

Nov 8, 2024

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