Description
IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system.
Affected products
ibm: power system s1122 \(9824-22a\) firmware; ibm: power system s1122 \(9824-22a\); ibm: power system s1124 \(9824-42a\) firmware; ibm: power system s1124 \(9824-42a\); ibm: power system s1122s \(9824-22b\) firmware; ibm: power system s1122s \(9824-22b\); ibm: power system s1114 \(9824-41b\) firmware; ibm: power system s1114 \(9824-41b\); ibm: power system l1122 \(9856-22h\) firmware; ibm: power system l1122 \(9856-22h\); ibm: power system l1124 \(9856-42h\) firmware; ibm: power system l1124 \(9856-42h\); ibm: power system e1150 \(9043-mru\) firmware; ibm: power system e1150 \(9043-mru\); ibm: power system s1112 \(9242-21b\) firmware
References1
- www.ibm.com/support/pages/node/7283237 Vendor Advisory
Metrics
- CVSS 3.1
-
8.2
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 6 · as of 10 November 2026
- CWE
- CWE-190
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