CVEvulnerability

CVE-2026-18871

7.3 HIGH Published 2026-08-19 Modified 2026-08-25 Official page ↗
Status
Analyzed
Published
2026-08-19
Last modified
2026-08-25
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.3 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
Weaknesses
CWE-121

Description

IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in host firmware configuration parsing. An attacker with authenticated service-level access to the service processor can write specially crafted configuration data, causing the host firmware boot stack to crash with possible memory corruption during system initialisation, resulting in an integrity and availability impact to the managed system.

Affected configurations

• ibm power system s1122 \(9824-22a\) firmware (>= fw1110.00 < fw1110.31) • ibm power system s1122 \(9824-22a\) firmware fw1120.00 • ibm power system s1124 \(9824-42a\) firmware (>= fw1110.00 < fw1110.31) • ibm power system s1124 \(9824-42a\) firmware fw1120.00 • ibm power system s1122s \(9824-22b\) firmware (>= fw1110.00 < fw1110.31) • ibm power system s1122s \(9824-22b\) firmware fw1120.00 • ibm power system s1114 \(9824-41b\) firmware (>= fw1110.00 < fw1110.31) • ibm power system s1114 \(9824-41b\) firmware fw1120.00 • ibm power system l1122 \(9856-22h\) firmware (>= fw1110.00 < fw1110.31) • ibm power system l1122 \(9856-22h\) firmware fw1120.00 • ibm power system l1124 \(9856-42h\) firmware (>= fw1110.00 < fw1110.31) • ibm power system l1124 \(9856-42h\) firmware fw1120.00 • ibm power system e1150 \(9043-mru\) firmware (>= fw1110.00 < fw1110.31) • ibm power system e1150 \(9043-mru\) firmware fw1120.00 • ibm power system s1112 \(9242-21b\) firmware fw1120.00 • ibm power system s1112 \(9242-21t\) firmware fw1120.00 • ibm power system e1080 \(9080-hex\) firmware (>= fw1060.00 < fw1060.81) • ibm power system s1022 \(9105-22a\) firmware (>= fw1060.00 < fw1060.81) • ibm power system s1024 \(9105-42a\) firmware (>= fw1060.00 < fw1060.81) • ibm power system s1022s \(9105-22b\) firmware (>= fw1060.00 < fw1060.81) • ibm power system s1014 \(9105-41b\) firmware (>= fw1060.00 < fw1060.81) • ibm power system l1022 \(9786-22h\) firmware (>= fw1060.00 < fw1060.81) • ibm power system l1024 \(9786-42h\) firmware (>= fw1060.00 < fw1060.81) • ibm power system e1050 \(9043-mrx\) firmware (>= fw1060.00 < fw1060.81) • ibm power system s1012 \(9028-21b\) firmware (>= fw1060.00 < fw1060.81) • ibm power system e1180 \(9080-heu\) firmware (>= fw1110.00 < fw1110.31) • ibm power system e1180 \(9080-heu\) firmware fw1120.00

Related

Weakness · CWE (1)

  • CWE-121 Stack-based Buffer Overflow weakness

References