Vulnerability · Published Aug 19, 2026 · Assigned by ibm

CVE-2026-17063Power System Incorrect Authorization

High 7.9

In plain English

A high-severity incorrect authorization in Power Systems Firmware from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)7.9High

Exploit odds (30 days)0.2%top 95.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
IBM	Power Systems Firmware	FW1120.00FW1110.00 – through FW1110.30FW1060.00 – through FW1060.80

Weakness: CWE-863 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H

References

https://www.ibm.com/support/pages/node/7283219 vendor-advisory, patch