Read the docs
TI-2023-20209 Aliases CVE-2023-38949GHSA-4m8x-4g54-h49v

An issue in a hidden API in ZKTeco BioTime v8.5.5 allows unauthenticated attackers to…

Priority LOW 39Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An issue in a hidden API in ZKTeco BioTime v8.5.5 allows unauthenticated attackers to arbitrarily reset the Administrator password via a crafted web request.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0042 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zkteco:biotime:8.5.5:*:*:*:*:*:*:*8.5.5VulnerableZKTeco
  • cpe:2.3:a:zkteco:biotime:8.5.5:*:*:*:*:*:*:* Versions 8.5.5 Vulnerable ·ZKTeco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-38949
  2. 2026-10-03 Alias added: GHSA-4m8x-4g54-h49v

References

Advisory 1

  • TI-2023-20210 A path traversal vulnerability in the iclock API of ZKTeco BioTime v8.5.5 allows… KEVCVSS 3.1HIGH 7.5
  • TI-2023-20211 ZKTeco BioTime 8.5.5 through 9.x before 9.0.1 (20240617.19506) allows authenticated… CVSS 3.1CRITICAL 9.8
  • TI-2023-27950 An issue in ZKTeco BioTime v.8.5.4 and before allows a remote attacker to obtain sensitive information. CVSS 3.1HIGH 7.5
  • TI-2023-20212 Insecure access control in ZKTeco BioTime through 9.0.1 allows authenticated attackers to… CVSS 3.1HIGH 7.5
  • TI-2024-12975 ZKTeco BioTime default password CVSS 4.0MEDIUM 6.9
  • TI-2022-18297 Zkteco BioTime < 8.5.3 Build:20200816.447 is vulnerable to Incorrect Access Control via… CVSS 3.1MEDIUM 6.8
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences