CVE-2021-20505

MEDIUM

PowerVM Hypervisor FW920-FW950 - Info Disclosure

Title source: llm
STIX 2.1

Description

The PowerVM Logical Partition Mobility(LPM) (PowerVM Hypervisor FW920, FW930, FW940, and FW950) encryption key exchange protocol can be compromised. If an attacker has the ability to capture encrypted LPM network traffic and is able to gain service access to the FSP they can use this information to perform a series of PowerVM service procedures to decrypt the captured migration traffic IBM X-Force ID: 198232

References (2)

Core 2
Core References
Vendor Advisory x_refsource_confirm
https://www.ibm.com/support/pages/node/6475619
VDB Entry, Vendor Advisory vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/198232

Scores

CVSS v3 4.4
EPSS 0.0055
EPSS Percentile 42.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Details

Status published
Products (4)
ibm/powervm_hypervisor fw920
ibm/powervm_hypervisor fw930
ibm/powervm_hypervisor fw940
ibm/powervm_hypervisor fw950
Published Jul 29, 2021
Tracked Since Feb 18, 2026