CVE-2026-17503

MediumCVSS 5.1/10Last modified Sep 30, 2026

Description

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 boot configuration. An attacker with root access to a partition can maliciously alter partition nvram, causing the partition to fail to boot. This condition persists until operator intervention — deleting and recreating the partition configuration — to restore normal operation. Successful exploitation results in an integrity and availability impact.

Metrics

CVSS 3.1 5.1/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H

Weakness enumeration

CWE-20

Affected software

No affected versions have been published.

Timeline

Published: Sep 24, 2026
Last modified: Sep 30, 2026
NVD status: Analyzed

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