IBM Power Sys Firmware FW1110-1120 Arbitrary Code Exec via BMC Host Interface
CVE-2026-17494 Published on August 19, 2026
Power System Buffer Overflow
IBM Power Systems Firmware FW1120.00, and FW1110.00 through FW1110.30 is affected by a vulnerability in the interface between the BMC and the host system. An attacker with service access to the BMC can send a specially crafted command, allowing arbitrary code to be executed on the host system, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.
Vulnerability Analysis
CVE-2026-17494 is exploitable with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-17494 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2026-17494
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Affected Versions
IBM Power Systems Firmware:- Version FW1120.00 is affected.
- Version FW1110.00, <= FW1110.30 is affected.