High severity · published Jul 30, 2026
CVE-2026-11885
Power System update in Buffer Copy
8.4
CVSS
0.1%
EPSS
No
On KEV
Description
IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1 A carefully crafted OS hypervisor call can cause the PowerVM hypervisor to crash or compromise OS memory integrity.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PowerVM Hypervisor · IBM
FW1110.00 through FW1110.20; FW1060.00 through FW1060.71; FW950.00 through FW950.H1 · source: vendor
PS
Power System E1050 (9043-mrx) Firmware · Ibm
fw1060.00 before fw1060.72 · source: NVD
PS
Power System E1080 (9080-hex) Firmware · Ibm
fw1060.00 before fw1060.72 · source: NVD
PS
Power System E1150 (9043-mru) Firmware · Ibm
fw1110.00 before fw1110.30 · source: NVD
PS
Power System E1180 (9080-heu) Firmware · Ibm
fw1110.00 before fw1110.30 · source: NVD
PS
Power System E950 (9040-mr9) Firmware · Ibm
fw950.00 before fw950.h2 · source: NVD
PS
Power System E980 (9080-m9s) Firmware · Ibm
fw950.00 before fw950.h2 · source: NVD
PS
Power System H922 (9223-22h) Firmware · Ibm
fw950.00 before fw950.h2 · source: NVD
PS
Power System H922 (9223-22s) Firmware · Ibm
fw950.00 before fw950.h2 · source: NVD
PS
Power System H924 (9223-42h) Firmware · Ibm
fw950.00 before fw950.h2 · source: NVD
PS
Power System H924 (9223-42s) Firmware · Ibm
fw950.00 before fw950.h2 · source: NVD
PS
Power System L1022 (9786-22h) Firmware · Ibm
fw1060.00 before fw1060.72 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-11885
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-11885
Vendor Advisory
https://www.ibm.com/support/pages/node/7280628
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