CVE-2026-4932CWE-331

CVE-2026-4932

Medium · published July 28, 2026

CVSS v3.1
4.2
EPSS
0%
Percentile
1.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.2 · MEDIUM
Vector
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00112 · 1.3th percentile
Weakness
CWE-331 · Insufficient Entropy
Published
2026-07-28T23:17Z
Affected products (17)
ProductVersionsFixed in
ibm/power_system_s1122_\(9824-22a\)_firmware≥ fw1110.00, < fw1110.30fw1110.30
ibm/power_system_s1124_\(9824-42a\)_firmware≥ fw1110.00, < fw1110.30fw1110.30
ibm/power_system_s1122s_\(9824-22b\)_firmware≥ fw1110.00, < fw1110.30fw1110.30
ibm/power_system_s1114_\(9824-41b\)_firmware≥ fw1110.00, < fw1110.30fw1110.30
ibm/power_system_l1122_\(9856-22h\)_firmware≥ fw1110.00, < fw1110.30fw1110.30
ibm/power_system_l1124_\(9856-42h\)_firmware≥ fw1110.00, < fw1110.30fw1110.30
ibm/power_system_e1150_\(9043-mru\)_firmware≥ fw1110.00, < fw1110.30fw1110.30
ibm/power_system_s1022_\(9105-22a\)_firmware≥ fw1060.00, < fw1060.72fw1060.72
ibm/power_system_s1024_\(9105-42a\)_firmware≥ fw1060.00, < fw1060.72fw1060.72
ibm/power_system_s1022s_\(9105-22b\)_firmware≥ fw1060.00, < fw1060.72fw1060.72
ibm/power_system_s1014_\(9105-41b\)_firmware≥ fw1060.00, < fw1060.72fw1060.72
ibm/power_system_l1022_\(9786-22h\)_firmware≥ fw1060.00, < fw1060.72fw1060.72
ibm/power_system_l1024_\(9786-42h\)_firmware≥ fw1060.00, < fw1060.72fw1060.72
ibm/power_system_e1050_\(9043-mrx\)_firmware≥ fw1060.00, < fw1060.72fw1060.72
ibm/power_system_s1012_\(9028-21b\)_firmware≥ fw1060.00, < fw1060.72fw1060.72
ibm/power_system_e1180_\(9080-heu\)_firmware≥ fw1110.00, < fw1110.30fw1110.30
ibm/power_system_e1080_\(9080-hex\)_firmware≥ fw1060.00, < fw1060.72fw1060.72
References (1)
EPSS history
Timeline
  • 28 JUL 18:09Z
    This Power System update is being released to address Insufficient Entropy
    cvelistv5