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CVE-2026-106026

Estado: AplazadaMedia (6.3)—

tftp-hpa 5.4 before 6.0 contains an out-of-bounds read vulnerability in rewrite_string() in tftpd/remap.c that walks heap memory during jump label searches. Unauthenticated remote attackers can send read or write requests whose filename matches a remap jump rule to crash the forked in.tftpd request handler.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

CVE-2026-106026 es OOB read (CWE-125) en tftp-hpa accesible sin autenticación (AV:N, PR:N). La lectura de memoria no autenticada es T1190. El crash del servicio es DoS (T1499.004); el OOB read permite leer heap (T1005 con confianza moderada).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

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

H Peter Anvin — Tftp-hpaAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-106026",
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          "id": "CVE-2026-106026",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-10-06T17:15:26.218941Z"
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
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          "valueDensity": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "vendor": "H. Peter Anvin",
          "product": "tftp-hpa",
          "versions": [
            {
              "status": "affected",
              "version": "5.4",
              "lessThan": "6.0",
              "versionType": "custom"
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  ],
  "published": "2026-10-06T14:17:42.083",
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      "lang": "en",
      "value": "tftp-hpa 5.4 before 6.0 contains an out-of-bounds read vulnerability in rewrite_string() in tftpd/remap.c that walks heap memory during jump label searches. Unauthenticated remote attackers can send read or write requests whose filename matches a remap jump rule to crash the forked in.tftpd request handler."
    }
  ],
  "lastModified": "2026-10-06T18:16:50.933",
  "sourceIdentifier": "disclosure@vulncheck.com"
}