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CVE-2023-3939

Status: DeferredCritical (10)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (4)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Smartec — St-fr041meAISmartec — St-fr043AIZkteco — Proface XAIZkteco — Zam170-nfAI

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-3939",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-3939",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-05-21T15:01:31.459687Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "vulnerability@kaspersky.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 10,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "vulnerability@kaspersky.com",
      "affectedData": [
        {
          "vendor": "ZkTeco",
          "product": "ZkTeco-based OEM devices with firmware ZAM170-NF-1.8.25-7354-Ver1.0.0",
          "versions": [
            {
              "status": "affected",
              "version": "ZAM170-NF-1.8.25-7354-Ver1.0.0"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:h:zkteco:facedepot_7b:-:*:*:*:*:*:*:*"
          ],
          "vendor": "zkteco",
          "product": "facedepot_7b",
          "versions": [
            {
              "status": "affected",
              "version": "-",
              "versionType": "custom",
              "lessThanOrEqual": "ZAM170-NF-1.8.25-7354-Ver1.0.0"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:zkteco:smartec_st_fr043:*:*:*:*:*:*:*:*"
          ],
          "vendor": "zkteco",
          "product": "smartec_st_fr043",
          "versions": [
            {
              "status": "affected",
              "version": "*",
              "versionType": "custom",
              "lessThanOrEqual": "ZAM170-NF-1.8.25-7354-Ver1.0.0"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:zkteco:smartec_st_fr041me:*:*:*:*:*:*:*:*"
          ],
          "vendor": "zkteco",
          "product": "smartec_st_fr041me",
          "versions": [
            {
              "status": "affected",
              "version": "*",
              "versionType": "custom",
              "lessThanOrEqual": "ZAM170-NF-1.8.25-7354-Ver1.0.0"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2024-05-21T10:15:09.683",
  "references": [
    {
      "url": "https://github.com/klsecservices/Advisories/blob/master/K-ZkTeco-2023-002.md",
      "source": "vulnerability@kaspersky.com"
    },
    {
      "url": "https://github.com/klsecservices/Advisories/blob/master/K-ZkTeco-2023-002.md",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "vulnerability@kaspersky.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Neutralization of Special Elements used in an OS Command ('OS \nCommand Injection') vulnerability in ZkTeco-based OEM devices allows OS \nCommand Injection. \nSince all the found command implementations are executed from the \nsuperuser, their impact is the maximum possible.\nThis issue affects \nZkTeco-based OEM devices (ZkTeco ProFace X, Smartec ST-FR043, Smartec \nST-FR041ME and possibly others) with the ZAM170-NF-1.8.25-7354-Ver1.0.0 \nand possibly other."
    },
    {
      "lang": "es",
      "value": "La neutralización incorrecta de elementos especiales utilizados en una vulnerabilidad de comando del sistema operativo ('inyección de comando del sistema operativo') en dispositivos OEM basados en ZkTeco permite la inyección de comando del sistema operativo. Dado que todas las implementaciones de comandos encontradas se ejecutan desde el superusuario, su impacto es el máximo posible. Este problema afecta a los dispositivos OEM basados en ZkTeco (ZkTeco ProFace X, Smartec ST-FR043, Smartec ST-FR041ME y posiblemente otros) con ZAM170-NF-1.8.25-7354-Ver1.0.0 y posiblemente otros."
    }
  ],
  "lastModified": "2026-06-17T06:15:23.250",
  "sourceIdentifier": "vulnerability@kaspersky.com"
}