7.5
High
CVE-2026-18821 IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through…
Description
IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 Power Systems Firmware is affected by a vulnerability in partition firmware during network boot. An unauthenticated attacker on the same network as a partition undergoing network boot can send a malformed packet, allowing arbitrary code to be executed in the partition firmware and compromising everything subsequently loaded by that partition. Other partitions and the managed system are not affected. Only partitions actively performing a network boot are affected, resulting in a confidentiality, integrity, and availability impact.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| PowerVM Hypervisor | Versions not published |
Other CVEs of PowerVM Hypervisor
The 43 CVEs of PowerVM Hypervisor →
CVE-2026-96261
IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in host firmware configuration…
7.3
High
CVE-2026-96262
IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in the service processor mailbox…
8.2
High
CVE-2026-96263
IBM Power Systems Firmware FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81…
8.2
High
CVE-2026-96264
IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in the service processor…
8.2
High