Medium severity · published Sep 24, 2026
CVE-2026-17504
This Power System update is being released to address
4.4
CVSS
0.1%
EPSS
No
On KEV
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. An attacker with root access to a partition can send a specially crafted request to the partition firmware runtime, causing it to crash with possible memory corruption.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PowerVM Hypervisor · IBM
FW1120.00 through FW1120.01; FW1110.00 through FW1110.31; FW1060.00 through FW1060.81; FW950.00 through FW950.H3 · source: vendor
PS
Power System E1050 (9043-mrx) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System E1080 (9080-hex) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System E1150 (9043-mru) Firmware · Ibm
fw1110.00 before fw1110.31; fw1120.00 · source: NVD
PS
Power System E1180 (9080-heu) Firmware · Ibm
fw1110.00 before fw1110.31; fw1120.00 · source: NVD
PS
Power System E950 (9040-mr9) Firmware · Ibm
fw950.00 before fw950.h3 · source: NVD
PS
Power System E980 (9080-m9s) Firmware · Ibm
fw950.00 before fw950.h3 · source: NVD
PS
Power System H922 (9223-22s) Firmware · Ibm
fw950.00 before fw950.h3 · source: NVD
PS
Power System H924 (9223-42s) Firmware · Ibm
fw950.00 before fw950.h3 · source: NVD
PS
Power System L1022 (9786-22h) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System L1024 (9786-42h) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System L1122 (9856-22h) Firmware · Ibm
fw1110.00 before fw1110.31; fw1120.00 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-17504
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-17504
Patch
https://www.ibm.com/support/pages/node/7289130
More from PowerVM Hypervisor
9.8
CVE-2022-34331
After performing a sequence of Power FW950, FW1010 maintenance operations a SRIOV network adapter can be improperly configured leading to desired VEPA configuration being…
9.1
CVE-2021-38917
IBM PowerVM Hypervisor FW860, FW940, and FW950 could allow an attacker that gains service access to the FSP can read and write arbitrary host system memory through a series of…
8.8
CVE-2023-30438
An internally discovered vulnerability in PowerVM on IBM Power9 and Power10 systems could allow an attacker with privileged user access to a logical partition to perform an…
8.4
CVE-2026-11885
Power System update in Buffer Copy
8.2
CVE-2026-96262
IBM Power Systems Firmware Buffer Overflow