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CVE-2026-2311

Full vulnerability record from the local CVENow database.

Description

IBM i 7.6, 7.5, 7.4, 7.3, and 7.2 s vulnerable to privilege escalation caused by an invalid IBM i Web Administration GUI authorization check.  A malicious actor could cause user-controlled code to run with administrator privilege.

Severity
CRITICAL
CVSS score
9.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-30 22:16:25.147000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
  "id": "CVE-2026-2311",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-30T22:16:25.147",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM i 7.6, 7.5, 7.4, 7.3, and 7.2 s vulnerable to privilege escalation caused by an invalid IBM i Web Administration GUI authorization check.  A malicious actor could cause user-controlled code to run with administrator privilege."
    },
    {
      "lang": "es",
      "value": "IBM i 7.6, 7.5, 7.4, 7.3 y 7.2 es vulnerable a la escalada de privilegios causada por una comprobación de autorización no válida de la GUI de administración web de IBM i. Un actor malicioso podría hacer que código controlado por el usuario se ejecute con privilegios de administrador."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "i",
          "cpes": [
            "cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.2.0:*:*:*:*:*:*:*"
          ],
          "versions": [
            {
              "version": "7.6.0",
              "lessThanOrEqual": "2.3.0",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "7.5.0",
              "status": "affected"
            },
            {
              "version": "7.4.0",
              "status": "affected"
            },
            {
              "version": "7.3.0",
              "status": "affected"
            },
            {
              "version": "7.2.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "HIGH",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 0.5,
        "impactScore": 5.9
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-01T00:00:00+00:00",
          "id": "CVE-2026-2311",
          "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-284"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:ibm:i:7.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "BD871157-2BB3-4641-B84E-3EA13D24D35A"
            },
            {
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              "criteria": "cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "9A49E8C5-7967-42AE-A787-C533D24A63D7"
            },
            {
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              "criteria": "cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*",
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            },
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            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:*",
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            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.ibm.com/support/pages/node/7269560",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}