CVE-2026-18871

published 2026-08-19

CVE-2026-18871: IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in host firmware configuration…

Priority P3 40 high 7.3 CVSS 3.1

AV L AC L PR L UI N S C C N I L A H

IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in host firmware configuration parsing. An attacker with authenticated service-level access to the service processor can write specially crafted configuration data, causing the host firmware boot stack to crash with possible memory corruption during system initialisation, resulting in an integrity and availability impact to the managed system.

Affected

29 ranges · showing 25

Vendor	Product	Version range	Fixed in
ibm	power_system_e1050_firmware	>= fw1060.00 < fw1060.81	fw1060.81
ibm	power_system_e1080_firmware	>= fw1060.00 < fw1060.81	fw1060.81
ibm	power_system_e1150_firmware	—	—
ibm	power_system_e1150_firmware	>= fw1110.00 < fw1110.31	fw1110.31
ibm	power_system_e1180_firmware	—	—
ibm	power_system_e1180_firmware	>= fw1110.00 < fw1110.31	fw1110.31
ibm	power_system_l1022_firmware	>= fw1060.00 < fw1060.81	fw1060.81
ibm	power_system_l1024_firmware	>= fw1060.00 < fw1060.81	fw1060.81
ibm	power_system_l1122_firmware	—	—
ibm	power_system_l1122_firmware	>= fw1110.00 < fw1110.31	fw1110.31
ibm	power_system_l1124_firmware	—	—
ibm	power_system_l1124_firmware	>= fw1110.00 < fw1110.31	fw1110.31
ibm	power_system_s1012_firmware	>= fw1060.00 < fw1060.81	fw1060.81
ibm	power_system_s1014_firmware	>= fw1060.00 < fw1060.81	fw1060.81
ibm	power_system_s1022_firmware	>= fw1060.00 < fw1060.81	fw1060.81
ibm	power_system_s1022s_firmware	>= fw1060.00 < fw1060.81	fw1060.81
ibm	power_system_s1024_firmware	>= fw1060.00 < fw1060.81	fw1060.81
ibm	power_system_s1112_firmware	—	—
ibm	power_system_s1114_firmware	—	—
ibm	power_system_s1114_firmware	>= fw1110.00 < fw1110.31	fw1110.31
ibm	power_system_s1122_firmware	—	—
ibm	power_system_s1122_firmware	>= fw1110.00 < fw1110.31	fw1110.31
ibm	power_system_s1122s_firmware	—	—
ibm	power_system_s1122s_firmware	>= fw1110.00 < fw1110.31	fw1110.31
ibm	power_system_s1124_firmware	—	—

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CWE-121