NVD

CVE-2026-17091 Detail

Description

IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call to inject an arbitrary amount of data into hypervisor or partition memory, resulting in either a crash causing a full platform re-IPL and terminating all hosted partitions, or corruption of hypervisor or partition memory. The PowerVM hypervisor will restart automatically; however, repeated exploitation could result in a sustained availability impact. Successful exploitation results in an integrity and availability impact to the managed system.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

Nist CVSS score does not match with CNA score

CNA: IBM Corporation

Base Score: 8.4 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://www.ibm.com/support/pages/node/7283229	IBM Corporation	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-190	Integer Overflow or Wraparound	IBM Corporation

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Initial Analysis by NIST 8/25/2026 4:45:55 PM

Action	Type	New Value
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_e1050_(9043-mrx)_firmware::::::::* versions from (including) fw1060.00 up to (excluding) fw1060.81 OR cpe:2.3:h:ibm:power_system_e1050_(9043-mrx):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_e1080_(9080-hex)_firmware::::::::* versions from (including) fw1060.00 up to (excluding) fw1060.81 OR cpe:2.3:h:ibm:power_system_e1080_(9080-hex):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_e1150_(9043-mru)_firmware::::::::* versions from (including) fw1110.00 up to (excluding) fw1110.31 cpe:2.3:o:ibm:power_system_e1150_(9043-mru)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_e1150_(9043-mru):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_e1180_(9080-heu)_firmware::::::::* versions from (including) fw1110.00 up to (excluding) fw1110.31 cpe:2.3:o:ibm:power_system_e1180_(9080-heu)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_e1180_(9080-heu):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_e950_(9040-mr9)_firmware::::::::* versions from (including) fw950.00 up to (excluding) fw950.h3 OR cpe:2.3:h:ibm:power_system_e950_(9040-mr9):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_e980_(9080-m9s)_firmware::::::::* versions from (including) fw950.00 up to (excluding) fw950.h3 OR cpe:2.3:h:ibm:power_system_e980_(9080-m9s):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_h922_(9223-22s)_firmware::::::::* versions from (including) fw950.00 up to (excluding) fw950.h3 OR cpe:2.3:h:ibm:power_system_h922_(9223-22s):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_h924_(9223-42s)_firmware::::::::* versions from (including) fw950.00 up to (excluding) fw950.h3 OR cpe:2.3:h:ibm:power_system_h924_(9223-42s):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_l1022_(9786-22h)_firmware::::::::* versions from (including) fw1060.00 up to (excluding) fw1060.81 OR cpe:2.3:h:ibm:power_system_l1022_(9786-22h):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_l1024_(9786-42h)_firmware::::::::* versions from (including) fw1060.00 up to (excluding) fw1060.81 OR cpe:2.3:h:ibm:power_system_l1024_(9786-42h):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_l1122_(9856-22h)_firmware::::::::* versions from (including) fw1110.00 up to (excluding) fw1110.31 cpe:2.3:o:ibm:power_system_l1122_(9856-22h)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_l1122_(9856-22h):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_l1124_(9856-42h)_firmware::::::::* versions from (including) fw1110.00 up to (excluding) fw1110.31 cpe:2.3:o:ibm:power_system_l1124_(9856-42h)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_l1124_(9856-42h):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1012_(9028-21b)_firmware::::::::* versions from (including) fw1060.00 up to (excluding) fw1060.81 OR cpe:2.3:h:ibm:power_system_s1012_(9028-21b):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1014_(9105-41b)_firmware::::::::* versions from (including) fw1060.00 up to (excluding) fw1060.81 OR cpe:2.3:h:ibm:power_system_s1014_(9105-41b):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1022_(9105-22a)_firmware::::::::* versions from (including) fw1060.00 up to (excluding) fw1060.81 OR cpe:2.3:h:ibm:power_system_s1022_(9105-22a):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1022s_(9105-22b)_firmware::::::::* versions from (including) fw1060.00 up to (excluding) fw1060.81 OR cpe:2.3:h:ibm:power_system_s1022s_(9105-22b):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1024_(9105-42a)_firmware::::::::* versions from (including) fw1060.00 up to (excluding) fw1060.81 OR cpe:2.3:h:ibm:power_system_s1024_(9105-42a):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1112_(9242-21b)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_s1112_(9242-21b):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1112_(9242-21t)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_s1112_(9242-21t):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1114_(9824-41b)_firmware::::::::* versions from (including) fw1110.00 up to (excluding) fw1110.31 cpe:2.3:o:ibm:power_system_s1114_(9824-41b)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_s1114_(9824-41b):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1122_(9824-22a)_firmware::::::::* versions from (including) fw1110.00 up to (excluding) fw1110.31 cpe:2.3:o:ibm:power_system_s1122_(9824-22a)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_s1122_(9824-22a):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1122s_(9824-22b)_firmware::::::::* versions from (including) fw1110.00 up to (excluding) fw1110.31 cpe:2.3:o:ibm:power_system_s1122s_(9824-22b)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_s1122s_(9824-22b):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s1124_(9824-42a)_firmware::::::::* versions from (including) fw1110.00 up to (excluding) fw1110.31 cpe:2.3:o:ibm:power_system_s1124_(9824-42a)_firmware:fw1120.00::::::: OR cpe:2.3:h:ibm:power_system_s1124_(9824-42a):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s914_(9009-41g)_firmware::::::::* versions from (including) fw950.00 up to (excluding) fw950.h3 OR cpe:2.3:h:ibm:power_system_s914_(9009-41g):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s922_(9009-22g)_firmware::::::::* versions from (including) fw950.00 up to (excluding) fw950.h3 OR cpe:2.3:h:ibm:power_system_s922_(9009-22g):-:::::::*
Added	CPE Configuration	AND OR cpe:2.3:o:ibm:power_system_s924_(9009-42g)_firmware::::::::* versions from (including) fw950.00 up to (excluding) fw950.h3 OR cpe:2.3:h:ibm:power_system_s924_(9009-42g):-:::::::*
Added	Reference Type	IBM Corporation: https://www.ibm.com/support/pages/node/7283229 Types: Vendor Advisory

New CVE Received from IBM Corporation 8/19/2026 4:17:12 PM

Action	Type	New Value
Added	Description	IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call to inject an arbitrary amount of data into hypervisor or partition memory, resulting in either a crash causing a full platform re-IPL and terminating all hosted partitions, or corruption of hypervisor or partition memory. The PowerVM hypervisor will restart automatically; however, repeated exploitation could result in a sustained availability impact. Successful exploitation results in an integrity and availability impact to the managed system.
Added	CVSS V3.1	AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Added	CWE	CWE-190
Added	Reference	https://www.ibm.com/support/pages/node/7283229
Added	Affected	[{"vendor":"IBM","product":"PowerVM Hypervisor","cpes":["cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:::::::","cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:::::::","cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:::::::","cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:::::::","cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:::::::","cpe:2.3:o:ibm:power_systems_firmware:fw950.00:::::::","cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:::::::*"],"versions":[{"version":"FW1120.00","status":"affected"},{"version":"FW1110.00","lessThanOrEqual":"FW1110.30","versionType":"semver","status":"affected"},{"version":"FW1060.00","lessThanOrEqual":"FW1060.80","versionType":"semver","status":"affected"},{"version":"FW950.00","lessThanOrEqual":"FW950.H2","versionType":"semver","status":"affected"}]}]

Quick Info

CVE Dictionary Entry:
CVE-2026-17091
NVD Published Date:
08/19/2026
NVD Last Modified:
08/25/2026
Source:
IBM Corporation

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