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[ CVE-2023-38950 · Published 3 Aug 2023 ]

ZKTeco BioTime Path Traversal Vulnerability

Exploited · CISA KEV CVSS 7.5 EPSS 92%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-05-19
  • EPSS: 92% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]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.

CISA: ZKTeco BioTime contains a path traversal vulnerability in the iclock API that allows an unauthenticated attacker to read arbitrary files via supplying a crafted payload.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 9 Jun 2025): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References