CVE-2020-8103: Link Resolution Privilege Escalation Vulnerability in Bitdefender Antivirus Free (VA-8604)

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-06-05 · updated 2026-06-17
Weakness: CWE-59

Description

A vulnerability in the improper handling of symbolic links in Bitdefender Antivirus Free can allow an unprivileged user to substitute a quarantined file, and restore it to a privileged location. This issue affects Bitdefender Antivirus Free versions prior to 1.0.17.178.

Affected products

Bitdefender Antivirus Free: before 1.0.17.178 — fixed in 1.0.17.178

How to fix

Upgrade to a fixed version: Bitdefender Antivirus Free 1.0.17.178. Check the vendor advisory for mitigations.

References

https://www.bitdefender.com/support/security-advisories/link-resolution-privilege-escalation-vulnerability-bitdefender-antivirus-free-va-8604/
https://www.bitdefender.com/support/security-advisories/link-resolution-privilege-escalation-vulnerability-bitdefender-antivirus-free-va-8604/

Get alerted when CVE-2020-8103 or the next vulnerability affects your stack