CVE-2026-93306: This Power System update is being released to address

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-25 · updated 2026-09-30
Weakness: CWE-125

Description

IBM Server Firmware 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 ASMI web interface. An unauthenticated attacker on the management network can send a malformed HTTPS request to ASMI, causing the web server to crash with possible memory corruption and generate an error log. The ASMI web interface will restart automatically; however, repeated exploitation could result in a sustained loss of access to the ASMI management interface, resulting in an integrity and availability impact.

Affected products

IBM Power System E1080 (9080-Hex) Firmware: from fw1060.00 before fw1060.82 — fixed in fw1060.82
IBM Power System E1180 (9080-Heu) Firmware: from fw1110.00 before fw1110.32; from fw1120.00 before fw1120.02 — fixed in fw1110.32, fw1120.02
IBM Power System E950 (9040-Mr9) Firmware: from fw950.00 before fw950.h4 — fixed in fw950.h4
IBM Power System E980 (9080-M9S) Firmware: from fw950.00 before fw950.h4 — fixed in fw950.h4
IBM Power System H922 (9223-22S) Firmware: from fw950.00 before fw950.h4 — fixed in fw950.h4
IBM Power System H924 (9223-42S) Firmware: from fw950.00 before fw950.h4 — fixed in fw950.h4
IBM Power System S914 (9009-41G) Firmware: from fw950.00 before fw950.h4 — fixed in fw950.h4
IBM Power System S922 (9009-22G) Firmware: from fw950.00 before fw950.h4 — fixed in fw950.h4
IBM Power System S924 (9009-42G) Firmware: from fw950.00 before fw950.h4 — fixed in fw950.h4

How to fix

Upgrade to a fixed version: IBM Power System E1080 (9080-Hex) Firmware fw1060.82; IBM Power System E1180 (9080-Heu) Firmware fw1110.32, fw1120.02; IBM Power System E950 (9040-Mr9) Firmware fw950.h4; IBM Power System E980 (9080-M9S) Firmware fw950.h4; IBM Power System H922 (9223-22S) Firmware fw950.h4; IBM Power System H924 (9223-42S) Firmware fw950.h4; IBM Power System S914 (9009-41G) Firmware fw950.h4; IBM Power System S922 (9009-22G) Firmware fw950.h4; IBM Power System S924 (9009-42G) Firmware fw950.h4. Check the vendor advisory for mitigations.

References

https://www.ibm.com/support/pages/node/7289331

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