CVEs / CVE-2023-38950
CVE-2023-38950: ZKTeco BioTime Path Traversal Vulnerability
- Known exploited in the CISA KEV catalog since 19 May 2025
- high 7.5 CVSS 3.1 (NVD)
- EPSS 92.4% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
Are you affected? Check your servers with Stackurity: it lists the software on each server and the vulnerabilities to fix first.
Check your servers with Stackurity Already using Stackurity? Search for CVE-2023-38950
Summary
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.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
Exploitation
| In CISA KEV since | 19 May 2025 |
|---|---|
| Due date for US federal agencies | 9 Jun 2025 |
| Used in ransomware campaigns | Unknown |
| 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. |
Severity
| CVSS 3.1 | 7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NScored by NVD |
|---|---|
| Weakness | CWE-22 |
References
- CVE-2023-38950 on NVD
- CVE-2023-38950 in the CISA KEV catalog
- https://www.zkteco.com/en/Security_Bulletinsibs (cited by CISA)
- https://claroty.com/team82/disclosure-dashboard/cve-2023-38950 Third Party Advisory
- https://sploitus.com/exploit?id=PACKETSTORM:177859 Exploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38950 US Government Resource
- https://www.fortinet.com/content/dam/fortinet/assets/reports/report-incident-response-middle-east.pdf Broken Link, Technical Description
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.