CVE-2023-38950 ZKTeco BioTime Path Traversal

Exploited in the wild High 7.5 Published 3 Aug 2023 Updated 9 Jul 2026

Unauthenticated attackers can read arbitrary files via path traversal in the iclock API of ZKTeco BioTime.

Exploited in the wild: Since 19 May 2025
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-38950?

CVE-2023-38950 is a high-severity path traversal 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

A path traversal vulnerability in the iclock API of ZKTeco BioTime v8.5.5 allows unauthenticated attackers to read arbitrary files via supplying a crafted payload. This vulnerability was fixed in version 9.0.120240617.19506 of ZKBioTime.

Weakness: CWE-22

Which versions are affected by CVE-2023-38950?

It affects 1 product.

Products include Zkteco Biotime.

How do I fix CVE-2023-38950?

No fix has been published for CVE-2023-38950 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 9 Jun 2025.

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

Is CVE-2023-38950 being exploited?

Yes. Attackers have exploited CVE-2023-38950 in the wild since at least 19 May 2025.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-27mv-5vpc-8g53.