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CVE-2025-70956

Estado: AplazadaAlta (7.5)—

A State Pollution vulnerability was discovered in the TON Virtual Machine (TVM) before v2025.04. The issue exists in the RUNVM instruction logic (VmState::run_child_vm), which is responsible for initializing child virtual machines. The operation moves critical resources (specifically libraries and log) from the parent state to a new child state in a non-atomic manner. If an Out-of-Gas (OOG) exception occurs after resources are moved but before the state transition is finalized, the parent VM retains a corrupted state where these resources are emptied/invalid. Because RUNVM supports gas isolation, the parent VM continues execution with this corrupted state, leading to unexpected behavior or denial of service within the contract's context.

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.

Vulnerabilidad de contaminación de estado en máquina virtual accesible por red sin autenticación (AV:N/PR:N). El impacto principal es DoS por corrupción de estado (A:H). Ejecución de código secundaria por contexto de contrato.

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

Privileged Account ManagementFilter Network TrafficVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software Installation

Tecnologías afectadas (1)

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

TON — TON Virtual MachineAI

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-70956",
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          "id": "CVE-2025-70956",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-02-17T15:11:18.367732Z"
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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  "published": "2026-02-13T22:16:10.290",
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      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "A State Pollution vulnerability was discovered in the TON Virtual Machine (TVM) before v2025.04. The issue exists in the RUNVM instruction logic (VmState::run_child_vm), which is responsible for initializing child virtual machines. The operation moves critical resources (specifically libraries and log) from the parent state to a new child state in a non-atomic manner. If an Out-of-Gas (OOG) exception occurs after resources are moved but before the state transition is finalized, the parent VM retains a corrupted state where these resources are emptied/invalid. Because RUNVM supports gas isolation, the parent VM continues execution with this corrupted state, leading to unexpected behavior or denial of service within the contract's context."
    },
    {
      "lang": "es",
      "value": "Se descubrió una vulnerabilidad de contaminación de estado en la Máquina Virtual TON (TVM) antes de la v2025.04. El problema existe en la lógica de la instrucción RUNVM (VmState::run_child_vm), que es responsable de inicializar máquinas virtuales secundarias. La operación mueve recursos críticos (específicamente librerías y registro) del estado padre a un nuevo estado secundario de manera no atómica. Si ocurre una excepción de Out-of-Gas (OOG) después de que los recursos son movidos pero antes de que la transición de estado sea finalizada, la VM padre retiene un estado corrupto donde estos recursos están vacíos/inválidos. Debido a que RUNVM soporta aislamiento de gas, la VM padre continúa la ejecución con este estado corrupto, lo que lleva a un comportamiento inesperado o denegación de servicio dentro del contexto del contrato."
    }
  ],
  "lastModified": "2026-06-17T10:03:28.677",
  "sourceIdentifier": "cve@mitre.org"
}