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CVE-2026-7837

Estado: AplazadaBaja (3.7)—

A time-of-check time-of-use (TOCTOU) condition in the ad_flush function in Netatalk 3.0.0 through 4.4.2 involves root-privileged file operations, which may allow a remote attacker to cause limited data modification under specific race conditions.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Netatalk — NetatalkAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-7837",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-7837",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-21T12:50:24.950225Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.7,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
      "affectedData": [
        {
          "vendor": "Netatalk",
          "product": "Netatalk",
          "versions": [
            {
              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "4.4.2"
            },
            {
              "status": "unaffected",
              "version": "4.5.0",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-05-21T09:16:30.803",
  "references": [
    {
      "url": "https://netatalk.io/security/CVE-2026-7837",
      "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A time-of-check time-of-use (TOCTOU) condition in the ad_flush function in Netatalk 3.0.0 through 4.4.2 involves root-privileged file operations, which may allow a remote attacker to cause limited data modification under specific race conditions."
    },
    {
      "lang": "es",
      "value": "Una condición de tiempo de verificación y tiempo de uso (TOCTOU) en la función ad_flush en Netatalk 3.0.0 hasta 4.4.2 implica operaciones de archivo con privilegios de root, lo que puede permitir a un atacante remoto causar una modificación limitada de datos bajo condiciones de carrera específicas."
    }
  ],
  "lastModified": "2026-07-23T16:10:00.137",
  "sourceIdentifier": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"
}