CVE-2026-17063 Power System Incorrect Authorization

High 7.9 Published 19 Aug 2026 Updated 20 Aug 2026

An attacker with BMC/FSP access can disrupt host processor state, impacting confidentiality and availability of managed systems and partitions.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-17063?

CVE-2026-17063 is a high-severity missing authorization vulnerability in IBM Power Systems Firmware, published on 19 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can access and disrupt host processor state, potentially affecting the managed system and all hosted partitions, resulting in an confidentiality, and availability impact.

Weakness: CWE-863

Which versions are affected by CVE-2026-17063?

It affects 19 products.

Products include Ibm Power System E1050 \(9043-Mrx\) Firmware, Ibm Power System E1080 \(9080-Hex\) Firmware, Ibm Power System E1150 \(9043-Mru\) Firmware, Ibm Power System E1180 \(9080-Heu\) Firmware, Ibm Power System L1022 \(9786-22h\) Firmware, Ibm Power System L1024 \(9786-42h\) Firmware and 13 more.

How do I fix CVE-2026-17063?

No fix has been published for CVE-2026-17063 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-17063 being exploited?

There is no known exploitation of CVE-2026-17063 in the wild and no public exploit code.

Sources

Also known as GHSA-9782-qj6g-8rj9.