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CVE-2025-47913

Estado: AnalizadaAlta (7.5)—

SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.

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.

Vector AV:N sin autenticación (PR:N) indica explotación remota sin privilegios (T1190). SSH malformado causa pánico del cliente (DoS por aplicación, T1499.004); CWE-617 es uso incorrecto de excepciones.

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)

GO — SSH

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-47913",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-47913",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-11-13T21:47:44.206349Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "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",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@golang.org",
      "affectedData": [
        {
          "vendor": "golang.org/x/crypto",
          "product": "golang.org/x/crypto/ssh/agent",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "0.43.0",
              "versionType": "semver"
            }
          ],
          "packageName": "golang.org/x/crypto/ssh/agent",
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "client.SignWithFlags"
            },
            {
              "name": "client.List"
            },
            {
              "name": "agentKeyringSigner.Sign"
            },
            {
              "name": "agentKeyringSigner.SignWithAlgorithm"
            },
            {
              "name": "client.Sign"
            },
            {
              "name": "client.Signers"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-11-13T22:15:51.280",
  "references": [
    {
      "url": "https://github.com/advisories/GHSA-56w8-48fp-6mgv",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@golang.org"
    },
    {
      "url": "https://go.dev/cl/700295",
      "tags": [
        "Patch"
      ],
      "source": "security@golang.org"
    },
    {
      "url": "https://go.dev/issue/75178",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "source": "security@golang.org"
    },
    {
      "url": "https://pkg.go.dev/vuln/GO-2025-4116",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@golang.org"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process."
    }
  ],
  "lastModified": "2026-06-17T09:28:50.357",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:go:ssh:*:*:*:*:*:go:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8CC7C462-0240-4D4B-B289-18AFF9D2BBF5",
              "versionEndExcluding": "0.43.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@golang.org"
}