CVE-2026-18857

This Power System update is being released to address

Published Sep 24, 2026 CVSS 3.1 · 3.4 Low EPSS < 1% KEV · Not listed
Description
IBM OPENBMC FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the BMC firmware management interface. The host system can cause the BMC firmware management service to crash or allow a limited amount of BMC internal memory to be read, resulting in a confidentiality and availability impact to the managed system.

Remediation

Vendor Solution

Customers with the products below should install FW1120.02(1120_195), FW1110.32(1110_160) or newer to remediate this vulnerability. Power 11 1) IBM Power System S1122 (9824-22A) 2) IBM Power System S1124 (9824-42A) 3) IBM Power System S1122s (9824-22B) 4) IBM Power System S1114 (9824-41B) 5) IBM Power System L1122 (9856-22H) 6) IBM Power System L1124 (9856-42H) 7) IBM Power System E1150 (9043-MRU) 8) IBM Power System S1112 (9242-21B, 9242-21T) Customers with the products below should install FW1060.82(1060_199) or newer to remediate this vulnerability. Power 10 1) IBM Power System S1022 (9105-22A) 2) IBM Power System S1024 (9105-42A) 3) IBM Power System S1022s (9105-22B) 4) IBM Power System S1014 (9105-41B) 5) IBM Power System L1022 (9786-22H) 6) IBM Power System L1024 (9786-42H) 7) IBM Power System E1050 (9043-MRX) 8) IBM Power System S1012 (9028-21B) The images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/


Vendor Workaround

Only install system firmware from trusted sources.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Ibm power System E1050 \(9043-mrx\)
Ibm power System E1050 \(9043-mrx\) Firmware
Ibm power System E1150 \(9043-mru\)
Ibm power System E1150 \(9043-mru\) Firmware
Ibm power System L1022 \(9786-22h\)
Ibm power System L1022 \(9786-22h\) Firmware
Ibm power System L1024 \(9786-42h\)
Ibm power System L1024 \(9786-42h\) Firmware
Ibm power System L1122 \(9856-22h\)
Ibm power System L1122 \(9856-22h\) Firmware
Ibm power System L1124 \(9856-42h\)
Ibm power System L1124 \(9856-42h\) Firmware
Ibm power System S1012 \(9028-21b\)
Ibm power System S1012 \(9028-21b\) Firmware
Ibm power System S1014 \(9105-41b\)
Ibm power System S1014 \(9105-41b\) Firmware
Ibm power System S1022 \(9105-22a\)
Ibm power System S1022 \(9105-22a\) Firmware
Ibm power System S1022s \(9105-22b\)
Ibm power System S1022s \(9105-22b\) Firmware
Ibm power System S1024 \(9105-42a\)
Ibm power System S1024 \(9105-42a\) Firmware
Ibm power System S1112 \(9242-21b\)
Ibm power System S1112 \(9242-21b\) Firmware
Ibm power System S1112 \(9242-21t\)
Ibm power System S1112 \(9242-21t\) Firmware
Ibm power System S1114 \(9824-41b\)
Ibm power System S1114 \(9824-41b\) Firmware
Ibm power System S1122 \(9824-22a\)
Ibm power System S1122 \(9824-22a\) Firmware
Ibm power System S1122s \(9824-22b\)
Ibm power System S1122s \(9824-22b\) Firmware
Ibm power System S1124 \(9824-42a\)
Ibm power System S1124 \(9824-42a\) Firmware
CPEs cpe:2.3:h:ibm:power_system_e1050_\(9043-mrx\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_e1150_\(9043-mru\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_l1022_\(9786-22h\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_l1024_\(9786-42h\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_l1122_\(9856-22h\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_l1124_\(9856-42h\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1012_\(9028-21b\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1014_\(9105-41b\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1022_\(9105-22a\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1022s_\(9105-22b\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1024_\(9105-42a\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1112_\(9242-21b\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1112_\(9242-21t\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1114_\(9824-41b\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1122_\(9824-22a\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1122s_\(9824-22b\):-:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1124_\(9824-42a\):-:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_e1050_\(9043-mrx\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_e1150_\(9043-mru\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_l1022_\(9786-22h\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_l1024_\(9786-42h\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_l1122_\(9856-22h\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_l1124_\(9856-42h\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1012_\(9028-21b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1014_\(9105-41b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1022_\(9105-22a\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1022s_\(9105-22b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1024_\(9105-42a\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1112_\(9242-21b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1112_\(9242-21t\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1114_\(9824-41b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1122_\(9824-22a\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1122s_\(9824-22b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1124_\(9824-42a\)_firmware:*:*:*:*:*:*:*:*
Vendors & Products Ibm power System E1050 \(9043-mrx\)
Ibm power System E1050 \(9043-mrx\) Firmware
Ibm power System E1150 \(9043-mru\)
Ibm power System E1150 \(9043-mru\) Firmware
Ibm power System L1022 \(9786-22h\)
Ibm power System L1022 \(9786-22h\) Firmware
Ibm power System L1024 \(9786-42h\)
Ibm power System L1024 \(9786-42h\) Firmware
Ibm power System L1122 \(9856-22h\)
Ibm power System L1122 \(9856-22h\) Firmware
Ibm power System L1124 \(9856-42h\)
Ibm power System L1124 \(9856-42h\) Firmware
Ibm power System S1012 \(9028-21b\)
Ibm power System S1012 \(9028-21b\) Firmware
Ibm power System S1014 \(9105-41b\)
Ibm power System S1014 \(9105-41b\) Firmware
Ibm power System S1022 \(9105-22a\)
Ibm power System S1022 \(9105-22a\) Firmware
Ibm power System S1022s \(9105-22b\)
Ibm power System S1022s \(9105-22b\) Firmware
Ibm power System S1024 \(9105-42a\)
Ibm power System S1024 \(9105-42a\) Firmware
Ibm power System S1112 \(9242-21b\)
Ibm power System S1112 \(9242-21b\) Firmware
Ibm power System S1112 \(9242-21t\)
Ibm power System S1112 \(9242-21t\) Firmware
Ibm power System S1114 \(9824-41b\)
Ibm power System S1114 \(9824-41b\) Firmware
Ibm power System S1122 \(9824-22a\)
Ibm power System S1122 \(9824-22a\) Firmware
Ibm power System S1122s \(9824-22b\)
Ibm power System S1122s \(9824-22b\) Firmware
Ibm power System S1124 \(9824-42a\)
Ibm power System S1124 \(9824-42a\) Firmware
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description IBM OPENBMC FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the BMC firmware management interface. The host system can cause the BMC firmware management service to crash or allow a limited amount of BMC internal memory to be read, resulting in a confidentiality and availability impact to the managed system.
Title This Power System update is being released to address
First Time appeared Ibm
Ibm openbmc
Weaknesses CWE-125
CPEs cpe:2.3:a:ibm:openbmc:fw1060.00.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1060.00:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1060.81.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1060.81:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1110.00.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1110.00:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1110.31.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1110.31:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1120.00.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1120.01.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:openbmc:fw1120.01:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm openbmc
References
Metrics cvssV3_1

{'score': 3.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L'}

Subscriptions

Ibm Openbmc Power System E1050 \(9043-mrx\) Power System E1050 \(9043-mrx\) Firmware Power System E1150 \(9043-mru\) Power System E1150 \(9043-mru\) Firmware Power System L1022 \(9786-22h\) Power System L1022 \(9786-22h\) Firmware Power System L1024 \(9786-42h\) Power System L1024 \(9786-42h\) Firmware Power System L1122 \(9856-22h\) Power System L1122 \(9856-22h\) Firmware Power System L1124 \(9856-42h\) Power System L1124 \(9856-42h\) Firmware Power System S1012 \(9028-21b\) Power System S1012 \(9028-21b\) Firmware Power System S1014 \(9105-41b\) Power System S1014 \(9105-41b\) Firmware Power System S1022 \(9105-22a\) Power System S1022 \(9105-22a\) Firmware Power System S1022s \(9105-22b\) Power System S1022s \(9105-22b\) Firmware Power System S1024 \(9105-42a\) Power System S1024 \(9105-42a\) Firmware Power System S1112 \(9242-21b\) Power System S1112 \(9242-21b\) Firmware Power System S1112 \(9242-21t\) Power System S1112 \(9242-21t\) Firmware Power System S1114 \(9824-41b\) Power System S1114 \(9824-41b\) Firmware Power System S1122 \(9824-22a\) Power System S1122 \(9824-22a\) Firmware Power System S1122s \(9824-22b\) Power System S1122s \(9824-22b\) Firmware Power System S1124 \(9824-42a\) Power System S1124 \(9824-42a\) Firmware
Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Sep 24, 2026, 2:54 PM
Reserved
Aug 4, 2026, 4:01 PM
Status
Analyzed
Published
Sep 24, 2026, 2:17 PM
Modified
Sep 30, 2026, 4:48 PM