CVE-2026-19492CWE-457

CVE-2026-19492

Low · published September 24, 2026

CVSS v3.1
3.2
EPSS
0%
Percentile
1.5
In the wild
Unconfirmed
What it is

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in a hypervisor call interface. An attacker with root access to a guest partition can read a limited amount of hypervisor memory, potentially exposing sensitive data belonging to the hypervisor or other guest partitions hosted on the same system, resulting in a confidentiality impact. The attacker has no control over which memory contents are returned. This vulnerability is of particular concern in multi-tenant environments where guests may run arbitrary OS images.

The record
Technical detail
CVSS v3.1
3.2 · LOW
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00115 · 1.5th percentile
Weakness
CWE-457 · Use of Uninitialized Variable
Published
2026-09-24T19:17Z
Affected products (27)
ProductVersionsFixed in
ibm/power_system_s1122_\(9824-22a\)_firmware≥ fw1110.00, < fw1110.32fw1110.32
ibm/power_system_s1122_\(9824-22a\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
ibm/power_system_s1124_\(9824-42a\)_firmware≥ fw1110.00, < fw1110.32fw1110.32
ibm/power_system_s1124_\(9824-42a\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
ibm/power_system_s1122s_\(9824-22b\)_firmware≥ fw1110.00, < fw1110.32fw1110.32
ibm/power_system_s1122s_\(9824-22b\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
ibm/power_system_s1114_\(9824-41b\)_firmware≥ fw1110.00, < fw1110.32fw1110.32
ibm/power_system_s1114_\(9824-41b\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
ibm/power_system_l1122_\(9856-22h\)_firmware≥ fw1110.00, < fw1110.32fw1110.32
ibm/power_system_l1122_\(9856-22h\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
ibm/power_system_l1124_\(9856-42h\)_firmware≥ fw1110.00, < fw1110.32fw1110.32
ibm/power_system_l1124_\(9856-42h\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
ibm/power_system_e1150_\(9043-mru\)_firmware≥ fw1110.00, < fw1110.32fw1110.32
ibm/power_system_e1150_\(9043-mru\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
ibm/power_system_s1112_\(9242-21b\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
ibm/power_system_s1112_\(9242-21t\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
ibm/power_system_e1080_\(9080-hex\)_firmware≥ fw1060.00, < fw1060.82fw1060.82
ibm/power_system_s1022_\(9105-22a\)_firmware≥ fw1060.00, < fw1060.82fw1060.82
ibm/power_system_s1024_\(9105-42a\)_firmware≥ fw1060.00, < fw1060.82fw1060.82
ibm/power_system_s1022s_\(9105-22b\)_firmware≥ fw1060.00, < fw1060.82fw1060.82
ibm/power_system_s1014_\(9105-41b\)_firmware≥ fw1060.00, < fw1060.82fw1060.82
ibm/power_system_l1022_\(9786-22h\)_firmware≥ fw1060.00, < fw1060.82fw1060.82
ibm/power_system_l1024_\(9786-42h\)_firmware≥ fw1060.00, < fw1060.82fw1060.82
ibm/power_system_e1050_\(9043-mrx\)_firmware≥ fw1060.00, < fw1060.82fw1060.82
ibm/power_system_s1012_\(9028-21b\)_firmware≥ fw1060.00, < fw1060.82fw1060.82
ibm/power_system_e1180_\(9080-heu\)_firmware≥ fw1110.00, < fw1110.32fw1110.32
ibm/power_system_e1180_\(9080-heu\)_firmware≥ fw1120.00, < fw1120.02fw1120.02
References (1)
EPSS history
Timeline
  • 26 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 24 SEP 14:17Z
    This Power System update is being released to address
    cvelistv5