CVE-2026-4932

Severity CVSS v4.0:

Pending analysis

Type:

CWE-331 Insufficient Entropy

Publication date:

28/07/2026

Last modified:

28/07/2026

Description

IBM PowerVM Hypervisor FW1110.00 through FW1110.20, and FW1060.00 through FW1060.71 could allow an attacker with physical access to the Transparent Memory Encryption (TME) hardware to decrypt encrypted memory due to insufficient cryptographic entropy.

Impact

Vector 3.x

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.20 MEDIUM
Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Physical
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

4.20

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://www.ibm.com/support/pages/node/7280632