Findings

CVE-2023-38950

ZKTeco BioTime Path Traversal Vulnerability

Published Aug 3, 2023 · updated Jul 9, 2026 · zkteco biotime

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.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 3, 2023 · Catalog

    Detected

    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.

  2. May 19, 2025 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  3. Jun 9, 2025 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  4. Jul 9, 2026 · Catalog

    Updated

    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.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA due date Jun 9, 2025

Affected

  • cpe zkteco/biotimeversion unspecified
  • vendor ZKTeco BioTimeversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2023-38950

    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.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2023-38950

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-38950

    30-day exploitation probability 92.5%

    first.org
  • NIST NVDVulnerability recordCVE-2023-38950

    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.

    nvd.nist.gov

References

CVE-2023-38950 · ZeroDay Findings