Back to CVE records
High 8.2Published Aug 19, 2026

CVE-2026-17100Power System Out-of-bounds Write

Updated under an hour ago ()

Does this affect you?

It affects IBM Power Systems Firmware and 29 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1, and OP940.00 - OP940.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the BMC/FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system.

CVSS
8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-787
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
ibm
NVD analysis
Analyzed
Record last updated
Aug 21, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
IBM Power Systems Firmware
ibm:power_firmware
FW1120.00; from FW1110.00 through FW1110.30; from FW1060.00 through FW1060.80; from FW950.00 through FW950.H2; from OP940.00 through OP940.a1; from OP940.00 through OP940.81
CNA record
ibm power_system_s1122_(9824-22a)_firmware
ibm:power_system_s1122_(9824-22a)_firmware
from fw1110.00 before fw1110.31; fw1120.00
NVD
ibm power_system_s1124_(9824-42a)_firmware
ibm:power_system_s1124_(9824-42a)_firmware
from fw1110.00 before fw1110.31; fw1120.00
NVD
ibm power_system_s1122s_(9824-22b)_firmware
ibm:power_system_s1122s_(9824-22b)_firmware
from fw1110.00 before fw1110.31; fw1120.00
NVD
ibm power_system_s1114_(9824-41b)_firmware
ibm:power_system_s1114_(9824-41b)_firmware
from fw1110.00 before fw1110.31; fw1120.00
NVD
ibm power_system_l1122_(9856-22h)_firmware
ibm:power_system_l1122_(9856-22h)_firmware
from fw1110.00 before fw1110.31; fw1120.00
NVD
ibm power_system_l1124_(9856-42h)_firmware
ibm:power_system_l1124_(9856-42h)_firmware
from fw1110.00 before fw1110.31; fw1120.00
NVD
ibm power_system_e1150_(9043-mru)_firmware
ibm:power_system_e1150_(9043-mru)_firmware
from fw1110.00 before fw1110.31; fw1120.00
NVD
ibm power_system_s1112_(9242-21b)_firmware
ibm:power_system_s1112_(9242-21b)_firmware
fw1120.00
NVD
ibm power_system_s1112_(9242-21t)_firmware
ibm:power_system_s1112_(9242-21t)_firmware
fw1120.00
NVD
ibm power_system_e1080_(9080-hex)_firmware
ibm:power_system_e1080_(9080-hex)_firmware
from fw1060.00 before fw1060.81
NVD
ibm power_system_s1022_(9105-22a)_firmware
ibm:power_system_s1022_(9105-22a)_firmware
from fw1060.00 before fw1060.81
NVD
ibm power_system_s1024_(9105-42a)_firmware
ibm:power_system_s1024_(9105-42a)_firmware
from fw1060.00 before fw1060.81
NVD
ibm power_system_s1022s_(9105-22b)_firmware
ibm:power_system_s1022s_(9105-22b)_firmware
from fw1060.00 before fw1060.81
NVD
ibm power_system_s1014_(9105-41b)_firmware
ibm:power_system_s1014_(9105-41b)_firmware
from fw1060.00 before fw1060.81
NVD
ibm power_system_l1022_(9786-22h)_firmware
ibm:power_system_l1022_(9786-22h)_firmware
from fw1060.00 before fw1060.81
NVD
ibm power_system_l1024_(9786-42h)_firmware
ibm:power_system_l1024_(9786-42h)_firmware
from fw1060.00 before fw1060.81
NVD
ibm power_system_e1050_(9043-mrx)_firmware
ibm:power_system_e1050_(9043-mrx)_firmware
from fw1060.00 before fw1060.81
NVD
ibm power_system_s1012_(9028-21b)_firmware
ibm:power_system_s1012_(9028-21b)_firmware
from fw1060.00 before fw1060.81
NVD
ibm power_system_e1180_(9080-heu)_firmware
ibm:power_system_e1180_(9080-heu)_firmware
from fw1110.00 before fw1110.31; fw1120.00
NVD
ibm power_system_s922_(9009-22g)_firmware
ibm:power_system_s922_(9009-22g)_firmware
from fw950.00 before fw950.h3; fw950.h3
NVD
ibm power_system_h922_(9223-22s)_firmware
ibm:power_system_h922_(9223-22s)_firmware
from fw950.00 before fw950.h3
NVD
ibm power_system_s914_(9009-41g)_firmware
ibm:power_system_s914_(9009-41g)_firmware
from fw950.00 before fw950.h3
NVD
ibm power_system_s924_(9009-42g)_firmware
ibm:power_system_s924_(9009-42g)_firmware
from fw950.00 before fw950.h3
NVD
ibm power_system_h924_(9223-42s)_firmware
ibm:power_system_h924_(9223-42s)_firmware
from fw950.00 before fw950.h3
NVD
ibm power_system_e950_(9040-mr9)_firmware
ibm:power_system_e950_(9040-mr9)_firmware
from fw950.00 before fw950.h3
NVD
ibm power_system_e980_(9080-m9s)_firmware
ibm:power_system_e980_(9080-m9s)_firmware
from fw950.00 before fw950.h3
NVD
ibm power_system_ac922_(8335-gth)_firmware
ibm:power_system_ac922_(8335-gth)_firmware
from op940 before op940.a2
NVD
ibm power_system_ac922_(8335-gtx)_firmware
ibm:power_system_ac922_(8335-gtx)_firmware
from op940 before op940.a2
NVD
ibm power_hardware_management_console_(7063-cr2)_firmware
ibm:power_hardware_management_console_(7063-cr2)_firmware
from op940 before op940.82
NVD

References

  • vendor-advisory, patch

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.