CVE-2026-16856

{
  "id": "CVE-2026-16856",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-12T18:17:24.277",
  "lastModified": "2026-10-23T19:10:00.167",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM i 7.6, and 7.5 could allow a local attacker to gain elevated privileges due to improper neutralization of special elements used in an OS command."
    },
    {
      "lang": "es",
      "value": "IBM i 7.6 y 7.5 podrían permitir a un atacante local obtener privilegios elevados debido a la neutralización incorrecta de elementos especiales utilizados en un comyo del sistema operativo."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "i",
          "cpes": [
            "cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*"
          ],
          "versions": [
            {
              "version": "7.6",
              "status": "affected"
            },
            {
              "version": "7.5",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-15T03:55:30.225786Z",
          "id": "CVE-2026-16856",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*",
              "matchCriteriaId": "88B74622-BDB2-43AE-A91F-FADEC4B64B4F"
            },
            {
              "vulnerable": true,
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              "matchCriteriaId": "8C189EC3-7D9F-4303-BB5C-1013FAE59B1E"
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  ],
  "references": [
    {
      "url": "https://www.ibm.com/support/pages/node/7283284",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}