CVE-2023-38950 — A path traversal vulnerability in the iclock API of ZKTeco BioTime v8
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.
Published
2023-08-03T23:15:11.117
Last modified
2026-07-05T02:16:45.990
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA KEV — Actively Exploited
01What is this vulnerability?
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.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Yes — actively exploited. Added to the CISA KEV catalog on 2025-05-19. Ransomware use: Unknown.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:
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07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2023-08-03T23:15:11.117
- Last modified: 2026-07-05T02:16:45.990
- Added to CISA KEV: 2025-05-19
09References
- claroty.com — https://claroty.com/team82/disclosure-dashboard/cve-2023-38950
- zkteco.com — http://zkteco.com
- claroty.com — https://claroty.com/team82/disclosure-dashboard/cve-2023-38950
- sploitus.com — https://sploitus.com/exploit?id=PACKETSTORM:177859
- www.cisa.gov — https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-…
- www.fortinet.com — https://www.fortinet.com/content/dam/fortinet/assets/reports/report-incident-res…
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