CriticalCritical vulnerability

CVE-2026-10858 (CVSS 9.9)

NVD · officialPublished Sep 18, 2026Risk 50/100EPSS 0.3%

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.

Technical details

CVSS

9.9

AV:NetworkAC:LowPR:LowUI:NoneC:HighI:HighA:High

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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