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CVE-2026-18869

IBM i is Affected By Denial of Service and Security Restriction Bypass Vulnerabilities in FTP [, ]

CVSS 3.1 6.4 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-18869

Published

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions and access internal network services due to improper validation of FTP PORT and EPRT commands.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-18869

Published

i

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "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:*:*:*:*:*:*:*"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON