CVE-2026-17413

Analyzed Analyzed - Analysis Complete

IBM PowerVM Hypervisor RTAS Firmware Denial of Service

Publication date: 2026-09-24

Last updated on: 2026-09-30

Assigner: IBM Corporation

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 RTAS firmware-to-OS interface. An attacker with administrator-level (root) access to a logical partition can send a specially crafted request to partition firmware, causing the partition to crash and become unavailable. Other partitions on the same managed system are not affected.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-24

Last Modified

2026-09-30

Generated

2026-10-14

AI Q&A

2026-09-24

EPSS Evaluated

2026-10-13

NVD

CVE-2026-17413

EUVD

EUVD-2026-85888

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	power_system_s1122_(9824-22a)_firmware	From fw1110.00 (inc) to fw1110.32 (exc)
ibm	power_system_s1122_(9824-22a)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_s1124_(9824-42a)_firmware	From fw1110.00 (inc) to fw1110.32 (exc)
ibm	power_system_s1124_(9824-42a)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_s1122s_(9824-22b)_firmware	From fw1110.00 (inc) to fw1110.32 (exc)
ibm	power_system_s1122s_(9824-22b)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_s1114_(9824-41b)_firmware	From fw1110.00 (inc) to fw1110.32 (exc)
ibm	power_system_s1114_(9824-41b)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_l1122_(9856-22h)_firmware	From fw1110.00 (inc) to fw1110.32 (exc)
ibm	power_system_l1122_(9856-22h)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_l1124_(9856-42h)_firmware	From fw1110.00 (inc) to fw1110.32 (exc)
ibm	power_system_l1124_(9856-42h)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_e1150_(9043-mru)_firmware	From fw1110.00 (inc) to fw1110.32 (exc)
ibm	power_system_e1150_(9043-mru)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_s1112_(9242-21b)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_s1112_(9242-21t)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_e1080_(9080-hex)_firmware	From fw1060.00 (inc) to fw1060.82 (exc)
ibm	power_system_s1022_(9105-22a)_firmware	From fw1060.00 (inc) to fw1060.82 (exc)
ibm	power_system_s1024_(9105-42a)_firmware	From fw1060.00 (inc) to fw1060.82 (exc)
ibm	power_system_s1022s_(9105-22b)_firmware	From fw1060.00 (inc) to fw1060.82 (exc)
ibm	power_system_s1014_(9105-41b)_firmware	From fw1060.00 (inc) to fw1060.82 (exc)
ibm	power_system_l1022_(9786-22h)_firmware	From fw1060.00 (inc) to fw1060.82 (exc)
ibm	power_system_l1024_(9786-42h)_firmware	From fw1060.00 (inc) to fw1060.82 (exc)
ibm	power_system_e1050_(9043-mrx)_firmware	From fw1060.00 (inc) to fw1060.82 (exc)
ibm	power_system_s1012_(9028-21b)_firmware	From fw1060.00 (inc) to fw1060.82 (exc)
ibm	power_system_e1180_(9080-heu)_firmware	From fw1110.00 (inc) to fw1110.32 (exc)
ibm	power_system_e1180_(9080-heu)_firmware	From fw1120.00 (inc) to fw1120.02 (exc)
ibm	power_system_s922_(9009-22g)_firmware	From fw950.00 (inc) to fw950.h4 (exc)
ibm	power_system_h922_(9223-22s)_firmware	From fw950.00 (inc) to fw950.h4 (exc)
ibm	power_system_s914_(9009-41g)_firmware	From fw950.00 (inc) to fw950.h4 (exc)
ibm	power_system_s924_(9009-42g)_firmware	From fw950.00 (inc) to fw950.h4 (exc)
ibm	power_system_h924_(9223-42s)_firmware	From fw950.00 (inc) to fw950.h4 (exc)
ibm	power_system_e950_(9040-mr9)_firmware	From fw950.00 (inc) to fw950.h4 (exc)
ibm	power_system_e980_(9080-m9s)_firmware	From fw950.00 (inc) to fw950.h4 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-129	The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

Attack-Flow Graph

Executive Summary

This vulnerability affects IBM PowerVM Hypervisor firmware versions FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3. It involves a flaw in the RTAS firmware-to-OS interface where an attacker with root access to a logical partition can send a specially crafted request to crash the partition and make it unavailable.

Detection Guidance

Detection requires checking the firmware version of IBM PowerVM Hypervisor. Compare installed versions against affected ranges: FW1120.00-FW1120.01, FW1110.00-FW1110.31, FW1060.00-FW1060.81, FW950.00-FW950.H3. Use IBM tools like HMC or IVM to query firmware versions.

Impact Analysis

If exploited, this vulnerability can cause a partition to crash and become unavailable, disrupting services running on that partition. Since it requires root access to a logical partition, the impact is limited to the affected partition only, with other partitions on the same system remaining unaffected.

Compliance Impact

This vulnerability does not directly impact compliance with GDPR or HIPAA as it primarily causes partition crashes without data exposure or unauthorized access. However, repeated crashes could disrupt availability of critical systems, potentially affecting service-level agreements or operational reliability required by these standards.

Mitigation Strategies

Install the latest firmware updates provided by IBM: FW1110.32, FW1120.02, FW1060.82, or FW950.H4. No workarounds exist; updates are mandatory. Verify installation via HMC or IVM after applying patches.

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