Read the docs
TI-2021-02446 Aliases CVE-2021-3485GHSA-wg6r-fv2h-h7xm

Improper Input Validation in Bitdefender Endpoint Security Tools for Linux

Priority LOW 31CWE-494Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-494.

Summary

An Improper Input Validation vulnerability in the Product Update feature of Bitdefender Endpoint Security Tools for Linux allows a man-in-the-middle attacker to abuse the DownloadFile function of the Product Update to achieve remote code execution. This issue affects: Bitdefender Endpoint Security Tools for Linux versions prior to 6.2.21.155.

Why it matters now

EPSS 0.0088 59th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Endpoint Security Tools for Linux (Bitdefender): 6.2.21.155

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
BitdefenderEndpoint Security Tools for Linuxbefore 6.2.21.1556.2.21.155Patch availableCNA
  • Endpoint Security Tools for Linux VendorBitdefender Affected before 6.2.21.155 Fixed in 6.2.21.155 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:bitdefender:endpoint_security_tools:*:*:*:*:*:linux:*:*before 6.2.21.155VulnerableBitdefender
  • cpe:2.3:a:bitdefender:endpoint_security_tools:*:*:*:*:*:linux:*:* Versions before 6.2.21.155 Vulnerable ·Bitdefender

Remediation

  • Fix · CNA Endpoint Security Tools for Linux (Bitdefender) Fixed in 6.2.21.155

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3485
  2. 2026-10-03 Alias added: GHSA-wg6r-fv2h-h7xm

References

Exploit 1

Advisory 1

  • TI-2021-02507 Improper access control in Bitdefender Endpoint Security Tools for Linux CVSS 3.1CRITICAL 10.0
  • TI-2025-06435 Local Privilege Escalation via Arbitrary File Operation in Bitdefender Total Security CVSS 4.0HIGH 8.8
  • TI-2021-02525 Privilege escalation via SeImpersonatePrivilege CVSS 3.1HIGH 7.8
  • TI-2021-02505 Insufficient validation on regular expression in EPPUpdateService config file (VA-9825) CVSS 3.1HIGH 7.5
  • TI-2022-00592 Improper Handling of Length Parameter Inconsistency vulnerability in Bitdefender Update Server (VA-10144) CVSS 3.1HIGH 7.5
  • TI-2021-03065 Incorrect Permission Assignment for Critical Resource vulnerability in BDReinit.exe (VA-10017) CVSS 3.1HIGH 7.8
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences