Lyrie
Critical CVE
CVSS 9.83 sources verified·1 min read
By Lyrie Threat Intelligence·7/9/2026

CRITICAL: CVE-2023-38951 (CVSS 9.8) — zkteco biotime

CVE: CVE-2023-38951

CVSS: 9.8 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: CRITICAL

Status: Critical advisory

Affected

  • zkteco biotime

Summary

ZKTeco BioTime 8.5.5 through 9.x before 9.0.1 (20240617.19506) allows authenticated attackers to create or overwrite arbitrary files on the server via crafted requests to /base/sftpsetting/ endpoints that abuse a path traversal issue in the Username field and a lack of input sanitization on the SSH Key field. Overwriting specific files may lead to arbitrary code execution as NT AUTHORITY\SYSTEM.

Verified Sources

References

  • https://claroty.com/team82/disclosure-dashboard/cve-2023-38951
  • https://github.com/omair2084/biotime-rce-8.5.5/blob/main/biotime_enum.py
  • https://krashconsulting.com/fury-of-fingers-biotime-rce/
  • https://www.zkteco.com/en/ZKBio_Time/ZKBioTime#Download
  • https://www.zkteco.com/en/announcement
  • https://claroty.com/team82/disclosure-dashboard/cve-2023-38951
  • https://sploitus.com/exploit?id=PACKETSTORM:177859

_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._

Lyrie Verdict

A vulnerability of this severity is exactly what Lyrie's anti-rogue-AI defense is built for: continuous, autonomous monitoring that doesn't wait for human reaction time.

Validated sources

  1. [1]NVD
  2. [2]GitHub Advisory
  3. [3]MITRE