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CVE-2026-86093

Db2 · Vulnerability

CVSS 3.1 7.5 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-86093

Published

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow an attacker with the ability to control or impersonate a DRDA server endpoint to execute arbitrary commands on Db2 clients due to a stack-based buffer overflow that improperly copies user-controlled data into a fixed-size stack buffer without bounds checking.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-86093

Published

Db2

Vendor product

Publisher's version information

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

{
                    "vendor": "IBM",
                    "product": "Db2",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "11.5.0",
                            "lessThanOrEqual": "11.5.9",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "12.1.0",
                            "lessThanOrEqual": "12.1.5",
                            "versionType": "semver"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:db2:12.1.5:*:*:*:*:*:*:*"
                    ]
                }

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