CVE-2020-12254 Path traversal in n/a

High 7.8 Published 26 Apr 2020 Updated 4 Aug 2024

Attackers can exploit symlink abuse in Avira Antivirus to achieve privilege escalation or cause a denial of service.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-12254?

CVE-2020-12254 is a high-severity path traversal vulnerability in n/a, published on 26 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Avira Antivirus before 5.0.2003.1821 on Windows allows privilege escalation or a denial of service via abuse of a symlink.

Weakness: CWE-59

Which versions are affected by CVE-2020-12254?

It affects 1 product.

Products include Avira Antivirus.

How do I fix CVE-2020-12254?

No fix has been published for CVE-2020-12254 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-12254 being exploited?

There is no known exploitation of CVE-2020-12254 in the wild and no public exploit code.

Sources

Also known as CVE-2020-13903, GHSA-2x9h-7774-vhg2.