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 PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call causing a virtual processor to become permanently unresponsive, requiring a full platform re-IPL to restore normal operation. In some cases this may also cause the guest to inject a small amount of data into hypervisor or partition memory with no attacker control over the target location. Successful exploitation results in an 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/7283231 Vendor Advisory
Metrics
- CVSS 3.1
-
6.7
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H - EPSS — exploit probability
- 0% percentile: 4 · as of 10 November 2026
- CWE
- CWE-129
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