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CVE-2026-16897

Status: AnalyzedMedium (4.4)—

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause a denial of service due to an out-of-bounds write.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

IBM — AIXIBM — Vios

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-16897",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-16897",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-20T15:47:10.374171Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
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          "baseScore": 4.4,
          "attackVector": "LOCAL",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
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      "affectedData": [
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            "cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*"
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          "vendor": "IBM",
          "product": "AIX",
          "versions": [
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            }
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        },
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          "product": "PowerVM VIOS",
          "versions": [
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  ],
  "published": "2026-08-19T20:17:10.360",
  "references": [
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      "url": "https://www.ibm.com/support/pages/node/7283858",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "psirt@us.ibm.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-369"
        }
      ]
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    {
      "lang": "en",
      "value": "IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause a denial of service due to an out-of-bounds write."
    }
  ],
  "lastModified": "2026-08-20T16:17:14.620",
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}