PT-2026-78672 · Ibm · Ibm Powervm Hypervisor+26
CVE-2026-4936
·
Published
2026-08-19
·
Updated
2026-08-19
CVSS v3.1
5.1
Medium
| Vector | AV:A/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N |
IBM PowerVM Hypervisor Platform KeyStore (PKS) and virtual TPM FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 use persistent storage key seeds that result in an AES key with reduced strength. An attacker with access to the service processor or HMC could exploit this weakness to derive the encryption key and access the data.
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Ibm Powervm Hypervisor
Power System E1050 (9043-Mrx) Firmware
Power System E1080 (9080-Hex) Firmware
Power System E1150 (9043-Mru) Firmware
Power System E1180 (9080-Heu) Firmware
Power System E950 (9040-Mr9) Firmware
Power System E980 (9080-M9S) Firmware
Power System H922 (9223-22S) Firmware
Power System H924 (9223-42S) Firmware
Power System L1022 (9786-22H) Firmware
Power System L1024 (9786-42H) Firmware
Power System L1122 (9856-22H) Firmware
Power System L1124 (9856-42H) Firmware
Power System S1012 (9028-21B) Firmware
Power System S1014 (9105-41B) Firmware
Power System S1022 (9105-22A) Firmware
Power System S1022S (9105-22B) Firmware
Power System S1024 (9105-42A) Firmware
Power System S1112 (9242-21B) Firmware
Power System S1112 (9242-21T) Firmware
Power System S1114 (9824-41B) Firmware
Power System S1122 (9824-22A) Firmware
Power System S1122S (9824-22B) Firmware
Power System S1124 (9824-42A) Firmware
Power System S914 (9009-41G) Firmware
Power System S922 (9009-22G) Firmware
Power System S924 (9009-42G) Firmware