CVE-2026-17503

Published Sep 24, 2026

Last updated 21 days ago

Overview

Description
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.
Source
psirt@us.ibm.com
NVD status
Analyzed
Products
power_system_s1122_\(9824-22a\)_firmware, power_system_s1124_\(9824-42a\)_firmware, power_system_s1122s_\(9824-22b\)_firmware, power_system_s1114_\(9824-41b\)_firmware, power_system_l1122_\(9856-22h\)_firmware, power_system_l1124_\(9856-42h\)_firmware, power_system_e1150_\(9043-mru\)_firmware, power_system_s1112_\(9242-21b\)_firmware, power_system_s1112_\(9242-21t\)_firmware, power_system_e1080_\(9080-hex\)_firmware, power_system_s1022_\(9105-22a\)_firmware, power_system_s1024_\(9105-42a\)_firmware, power_system_s1022s_\(9105-22b\)_firmware, power_system_s1014_\(9105-41b\)_firmware, power_system_l1022_\(9786-22h\)_firmware, power_system_l1024_\(9786-42h\)_firmware, power_system_e1050_\(9043-mrx\)_firmware, power_system_s1012_\(9028-21b\)_firmware, power_system_e1180_\(9080-heu\)_firmware, power_system_s922_\(9009-22g\)_firmware, power_system_h922_\(9223-22s\)_firmware, power_system_s914_\(9009-41g\)_firmware, power_system_s924_\(9009-42g\)_firmware, power_system_h924_\(9223-42s\)_firmware, power_system_e950_\(9040-mr9\)_firmware, power_system_e980_\(9080-m9s\)_firmware

Risk scores

CVSS 3.1

Type
Secondary
Base score
5.1
Impact score
4.2
Exploitability score
0.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
Severity
MEDIUM

Weaknesses

psirt@us.ibm.com
CWE-20

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.