CVE-2021-3823

Path traversal vulnerability in Bitdefender GravitZone Update Server in relay mode

Description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the UpdateServer component of Bitdefender GravityZone allows an attacker to execute arbitrary code on vulnerable instances. This issue affects: Bitdefender GravityZone versions prior to 3.3.8.249.

Remediation

Solution:

  • An automatic update to Bitdefender GravityZone Update Server to version 3.3.8.249 fixes the issue.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.40%
Vendor Advisory bitdefender.com
Affected: Bitdefender GravityZone Update Server
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-3823?
CVE-2021-3823 has been scored as a high severity vulnerability.
How to fix CVE-2021-3823?
To fix CVE-2021-3823: An automatic update to Bitdefender GravityZone Update Server to version 3.3.8.249 fixes the issue.
Is CVE-2021-3823 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3823 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3823?
CVE-2021-3823 affects Bitdefender GravityZone Update Server.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.