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MEDIUM · 4.3

CVE-2026-18870

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 could allow a remote attacker to obtain sensitive informatio...

Vulnerability Description

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
IbmPower System S1122 \(9824-22A\) Firmware>= fw1110.00, < fw1110.32
IbmPower System S1122 \(9824-22A\)-
IbmPower System S1124 \(9824-42A\) Firmware>= fw1110.00, < fw1110.32
IbmPower System S1124 \(9824-42A\)-
IbmPower System S1122S \(9824-22B\) Firmware>= fw1110.00, < fw1110.32
IbmPower System S1122S \(9824-22B\)-
IbmPower System S1114 \(9824-41B\) Firmware>= fw1110.00, < fw1110.32
IbmPower System S1114 \(9824-41B\)-
IbmPower System L1122 \(9856-22H\) Firmware>= fw1110.00, < fw1110.32
IbmPower System L1122 \(9856-22H\)-
IbmPower System L1124 \(9856-42H\) Firmware>= fw1110.00, < fw1110.32
IbmPower System L1124 \(9856-42H\)-
IbmPower System E1150 \(9043-Mru\) Firmware>= fw1110.00, < fw1110.32
IbmPower System E1150 \(9043-Mru\)-
IbmPower System S1112 \(9242-21B\) Firmware>= fw1120.00, < fw1120.02
IbmPower System S1112 \(9242-21B\)-
IbmPower System S1112 \(9242-21T\) Firmware>= fw1120.00, < fw1120.02
IbmPower System S1112 \(9242-21T\)-
IbmPower System E1080 \(9080-Hex\) Firmware>= fw1060.00, < fw1060.82
IbmPower System E1080 \(9080-Hex\)-

Related Weaknesses (CWE)

CWE-125

References

FAQ

What is CVE-2026-18870?

CVE-2026-18870 is a vulnerability with a CVSS score of 4.3 (MEDIUM). IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 could allow a remote attacker to obtain sensitive informatio...

How severe is CVE-2026-18870?

CVE-2026-18870 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-18870?

Check the references section above for vendor advisories and patch information. Affected products include: Ibm Power System S1122 \(9824-22A\) Firmware, Ibm Power System S1122 \(9824-22A\), Ibm Power System S1124 \(9824-42A\) Firmware, Ibm Power System S1124 \(9824-42A\), Ibm Power System S1122S \(9824-22B\) Firmware.