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CVE-2026-18020

🗓️ 13 Aug 2026 20:41:25Reported by ibmType 
cve
 cve
🔗 web.nvd.nist.gov👁 13 Views

IBM i 7.3-7.6 NetServer off-by-one bounds check error enables remote DoS.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-18020
13 Aug 202620:41
attackerkb
cvelist
Cvelist
CVE-2026-18020 IBM i is Affected By Multiple Vulnerabilities in NetServer
13 Aug 202620:41
cvelist
euvd
EUVD
EUVD-2026-58462
13 Aug 202620:41
euvd
ibm
IBM Security Bulletins
Security Bulletin: IBM i is Affected By Multiple Vulnerabilities in NetServer
12 Aug 202621:57
ibm
nvd
NVD
CVE-2026-18020
13 Aug 202621:17
nvd
ptsecurity
Positive Technologies
PT-2026-71855
13 Aug 202600:00
ptsecurity
Vulners
Node
OR
ibmiMatch7.6
ibmiMatch7.5
ibmiMatch7.4
ibmiMatch7.3
[
  {
    "vendor": "IBM",
    "product": "i",
    "versions": [
      {
        "status": "affected",
        "version": "7.6"
      },
      {
        "status": "affected",
        "version": "7.5"
      },
      {
        "status": "affected",
        "version": "7.4"
      },
      {
        "status": "affected",
        "version": "7.3"
      }
    ],
    "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:*:*:*:*:*:*:*",
      "cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*",
      "cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*",
      "cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*"
    ]
  }
]

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13 Aug 2026 21:17Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.15.3
13