CVE-2026-17503

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the partition firmware runtime boot configuration. An attacker with root access to a partition can maliciously alter partition nvram, causing the partition to fail to boot. This condition persists until operator intervention — deleting and recreating the partition configuration — to restore normal operation. Successful exploitation results in an integrity and availability impact.

• ibm power system s1122 \(9824-22a\) firmware (>= fw1110.00 < fw1110.32) • ibm power system s1122 \(9824-22a\) firmware (>= fw1120.00 < fw1120.02) • ibm power system s1124 \(9824-42a\) firmware (>= fw1110.00 < fw1110.32) • ibm power system s1124 \(9824-42a\) firmware (>= fw1120.00 < fw1120.02) • ibm power system s1122s \(9824-22b\) firmware (>= fw1110.00 < fw1110.32) • ibm power system s1122s \(9824-22b\) firmware (>= fw1120.00 < fw1120.02) • ibm power system s1114 \(9824-41b\) firmware (>= fw1110.00 < fw1110.32) • ibm power system s1114 \(9824-41b\) firmware (>= fw1120.00 < fw1120.02) • ibm power system l1122 \(9856-22h\) firmware (>= fw1110.00 < fw1110.32) • ibm power system l1122 \(9856-22h\) firmware (>= fw1120.00 < fw1120.02) • ibm power system l1124 \(9856-42h\) firmware (>= fw1110.00 < fw1110.32) • ibm power system l1124 \(9856-42h\) firmware (>= fw1120.00 < fw1120.02) • ibm power system e1150 \(9043-mru\) firmware (>= fw1110.00 < fw1110.32) • ibm power system e1150 \(9043-mru\) firmware (>= fw1120.00 < fw1120.02) • ibm power system s1112 \(9242-21b\) firmware (>= fw1120.00 < fw1120.02) • ibm power system s1112 \(9242-21t\) firmware (>= fw1120.00 < fw1120.02) • ibm power system e1080 \(9080-hex\) firmware (>= fw1060.00 < fw1060.82) • ibm power system s1022 \(9105-22a\) firmware (>= fw1060.00 < fw1060.82) • ibm power system s1024 \(9105-42a\) firmware (>= fw1060.00 < fw1060.82) • ibm power system s1022s \(9105-22b\) firmware (>= fw1060.00 < fw1060.82) • ibm power system s1014 \(9105-41b\) firmware (>= fw1060.00 < fw1060.82) • ibm power system l1022 \(9786-22h\) firmware (>= fw1060.00 < fw1060.82) • ibm power system l1024 \(9786-42h\) firmware (>= fw1060.00 < fw1060.82) • ibm power system e1050 \(9043-mrx\) firmware (>= fw1060.00 < fw1060.82) • ibm power system s1012 \(9028-21b\) firmware (>= fw1060.00 < fw1060.82) • ibm power system e1180 \(9080-heu\) firmware (>= fw1110.00 < fw1110.32) • ibm power system e1180 \(9080-heu\) firmware (>= fw1120.00 < fw1120.02) • ibm power system s922 \(9009-22g\) firmware (>= fw950.00 < fw950.h4) • ibm power system h922 \(9223-22s\) firmware (>= fw950.00 < fw950.h4) • ibm power system s914 \(9009-41g\) firmware (>= fw950.00 < fw950.h4) • ibm power system s924 \(9009-42g\) firmware (>= fw950.00 < fw950.h4) • ibm power system h924 \(9223-42s\) firmware (>= fw950.00 < fw950.h4) • ibm power system e950 \(9040-mr9\) firmware (>= fw950.00 < fw950.h4) • ibm power system e980 \(9080-m9s\) firmware (>= fw950.00 < fw950.h4)