What’s Vulnerable › Vulnerabilities

CVE-2023-3939: Multiple command injection in ZkTeco-based OEM devices

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-21 · updated 2026-06-17
• Weakness: CWE-78

Description

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in ZkTeco-based OEM devices allows OS Command Injection. Since all the found command implementations are executed from the superuser, their impact is the maximum possible. This issue affects ZkTeco-based OEM devices (ZkTeco ProFace X, Smartec ST-FR043, Smartec ST-FR041ME and possibly others) with the ZAM170-NF-1.8.25-7354-Ver1.0.0 and possibly other.

Affected products

• ZKTeco Facedepot 7B: through ZAM170-NF-1.8.25-7354-Ver1.0.0
• ZKTeco Smartec St Fr041Me: through ZAM170-NF-1.8.25-7354-Ver1.0.0
• ZKTeco Smartec St Fr043: through ZAM170-NF-1.8.25-7354-Ver1.0.0

References

• https://github.com/klsecservices/Advisories/blob/master/K-ZkTeco-2023-002.md
• https://github.com/klsecservices/Advisories/blob/master/K-ZkTeco-2023-002.md

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