CVE-2026-96265 IBM Power Systems Firmware - Broken Access Control

IBM Power Systems Firmware FW1060.00 through FW1060.81 contains a broken access control vulnerability caused by improper validation in the service processor mailbox interface, letting authenticated service-level attackers read or modify Hostboot memory, exploit requires authenticated service-level access.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure, Data Tampering, Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
12 October 2026
Updated
15 October 2026
Weakness
CWE-119

Vendor fix

Update to a version later than FW1060.81 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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