Main Vulnerability Database Vulnerabilities #VU139418

Link following in Bitdefender Total Security - CVE-2026-6851

Published: July 27, 2026

Vulnerability identifier: #VU139418

CSH Severity: Low

CVSS v4: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-6851

CWE-ID: CWE-59

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to an insecure link following issue in the File Shredder module. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

Affected software

Bitdefender Total Security

How to mitigate CVE-2026-6851

Install updates from vendor's website.

Bitdefender Total Security - update to 27.0.58.315

External References

https://www.zerodayinitiative.com/advisories/ZDI-26-448/
https://www.bitdefender.com/support/security-advisories/improper-link-resolution-before-file-access-in-bitdefender-total-security-via-link-following-va-13681/

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