CVE-2023-38950: ZKTeco BioTime Path Traversal Vulnerability

High severity, CVSS 7.5. Actively exploited: in CISA KEV since 2025-05-19. EPSS: 92.5% chance of exploitation in the next 30 days.

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.

Affected products

• ZKTeco BioTime: before 9.0.1 (fixed in 9.0.1)

Published 2023-08-03. Last modified 2026-07-09.