CVE-2023-38949 Auth bypass in n/a

High 7.5 Published 3 Aug 2023 Updated 9 Jul 2026

Unauthenticated attackers can reset the Administrator password in ZKTeco BioTime via a hidden API, leading to full system compromise.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-38949?

CVE-2023-38949 is a high-severity authentication bypass vulnerability in n/a, published on 3 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in a hidden API in ZKTeco BioTime v8.5.5 allows unauthenticated attackers to arbitrarily reset the Administrator password via a crafted web request.

Which versions are affected by CVE-2023-38949?

It affects 1 product.

Products include Zkteco Biotime.

How do I fix CVE-2023-38949?

No fix has been published for CVE-2023-38949 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-38949 being exploited?

There is no known exploitation of CVE-2023-38949 in the wild and no public exploit code.

Sources

Also known as GHSA-4m8x-4g54-h49v.