CVE WatchSep 24, 2026

CVE-2026-17503

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3

CVSS

5.1

Medium

EPSS

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KEV

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Exploit Today

0-100

Published: Sep 24, 2026 · Last modified: Sep 24, 2026 · CWE-20

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

www.ibm.comhttps://www.ibm.com/support/pages/node/7289133

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