CVE-2023-30440: IBM Powervm Hypervisor

High severity, CVSS 7.9. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM PowerVM Hypervisor FW860.00 through FW860.B3, FW950.00 through FW950.70, FW1010.00 through FW1010.50, FW1020.00 through FW1020.30, and FW1030.00 through FW1030.10 could allow a local attacker with control a partition that has been assigned SRIOV virtual function (VF) to cause a denial of service to a peer partition or arbitrary data corruption. IBM X-Force ID: 253175.

Affected products

• IBM Powervm Hypervisor: from fw860, up to and including fw860.b3; from fw950, up to and including fw950.70; from fw1010, up to and including fw1010.50; from fw1020.00, up to and including fw1020.30; from fw1030.00, up to and including fw1030.10

Published 2023-05-23. Last modified 2026-06-17.