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.
- CVSS 3.1
- 5.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H - EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-25)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- ibm:power_system_e1050_\(9043-mrx\)_firmware
- ibm:power_system_e1080_\(9080-hex\)_firmware
- ibm:power_system_e1150_\(9043-mru\)_firmware
- ibm:power_system_e1180_\(9080-heu\)_firmware
- ibm:power_system_e950_\(9040-mr9\)_firmware
- ibm:power_system_e980_\(9080-m9s\)_firmware
- ibm:power_system_h922_\(9223-22s\)_firmware
- ibm:power_system_h924_\(9223-42s\)_firmware
- ibm:power_system_l1022_\(9786-22h\)_firmware
- ibm:power_system_l1024_\(9786-42h\)_firmware
- ibm:power_system_l1122_\(9856-22h\)_firmware
- ibm:power_system_l1124_\(9856-42h\)_firmware
- ibm:power_system_s1012_\(9028-21b\)_firmware
- ibm:power_system_s1014_\(9105-41b\)_firmware
- ibm:power_system_s1022_\(9105-22a\)_firmware
- ibm:power_system_s1022s_\(9105-22b\)_firmware
- ibm:power_system_s1024_\(9105-42a\)_firmware
- ibm:power_system_s1112_\(9242-21b\)_firmware
- ibm:power_system_s1112_\(9242-21t\)_firmware
- ibm:power_system_s1114_\(9824-41b\)_firmware
- ibm:power_system_s1122_\(9824-22a\)_firmware
- ibm:power_system_s1122s_\(9824-22b\)_firmware
- ibm:power_system_s1124_\(9824-42a\)_firmware
- ibm:power_system_s914_\(9009-41g\)_firmware
- ibm:power_system_s922_\(9009-22g\)_firmware
- ibm:power_system_s924_\(9009-42g\)_firmware