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CVE-2026-16821

🗓️ 28 Aug 2026 20:43:04Reported by ibmType 
cve
 cve
🔗 web.nvd.nist.gov👁 9 Views

Local format string vulnerability in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 escalates privileges.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus
AIX : Multiple Vulnerabilities (IJ59563)
21 Aug 202600:00
nessus
nessus
Tenable Nessus
AIX : Multiple Vulnerabilities (IJ59564)
21 Aug 202600:00
nessus
nessus
Tenable Nessus
AIX : Multiple Vulnerabilities (IJ59565)
21 Aug 202600:00
nessus
nessus
Tenable Nessus
AIX : Multiple Vulnerabilities (IJ59566)
21 Aug 202600:00
nessus
cvelist
Cvelist
CVE-2026-16821 Vulnerabilities in IBM AIX and PowerVM VIOS
28 Aug 202620:43
cvelist
euvd
EUVD
EUVD-2026-67948
29 Aug 202600:31
euvd
nvd
NVD
CVE-2026-16821
28 Aug 202622:16
nvd
ptsecurity
Positive Technologies
PT-2026-83324
28 Aug 202600:00
ptsecurity
Vulners
Node
OR
ibmaixMatch7.2
ibmaixMatch7.2.0
ibmaixMatch7.3
ibmaixMatch7.3.0
ibmpowervm_viosMatch4.1.0
[
  {
    "vendor": "IBM",
    "product": "AIX",
    "versions": [
      {
        "status": "affected",
        "version": "7.2"
      },
      {
        "status": "affected",
        "version": "7.3"
      }
    ],
    "cpes": [
      "cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*",
      "cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*",
      "cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*"
    ]
  },
  {
    "vendor": "IBM",
    "product": "PowerVM VIOS",
    "versions": [
      {
        "status": "affected",
        "version": "4.1"
      }
    ],
    "cpes": [
      "cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*",
      "cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*"
    ]
  }
]

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28 Aug 2026 22:16Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17
9