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CVE-2026-10858

IBM MQ for HPE NonStop is vulnerable to a denial of service attack

CVSS 3.1 9.9 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-10858

Published

IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer underflow when processing multi-segment messages.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-10858

Published

MQ for HPE NonStop

Vendor product

Publisher's version information

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

{
                    "vendor": "IBM",
                    "product": "MQ for HPE NonStop",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "8.1.0",
                            "lessThanOrEqual": "8.1.0.40",
                            "versionType": "semver"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:ibm:mq_for_hpe_nonstop:8.1.0:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:mq_for_hpe_nonstop:8.1.0.40:*:*:*:*:*:*:*"
                    ]
                }

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