CVE-2026-17504 is a vulnerability in IBM Powervm Hypervisor
Published on September 24, 2026
This Power System update is being released to address
IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the partition firmware runtime. An attacker with root access to a partition can send a specially crafted request to the partition firmware runtime, causing it to crash with possible memory corruption.
Vulnerability Analysis
CVE-2026-17504 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 have no impact on confidentiality, with no impact on integrity, and a high impact on availability.
Weakness Type
What is an Integer underflow Vulnerability?
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This can happen in signed and unsigned cases.
CVE-2026-17504 has been classified to as an Integer underflow vulnerability or weakness.
Products Associated with CVE-2026-17504
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Affected Versions
IBM PowerVM Hypervisor:- Version FW1120.00, <= FW1120.01 is affected.
- Version FW1110.00, <= FW1110.31 is affected.
- Version FW1060.00, <= FW1060.81 is affected.
- Version FW950.00, <= FW950.H3 is affected.