CVE-2026-18871

IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in host firmware configuration parsing. An attacker with authenticated service-level access to the service processor can write specially crafted configuration data, causing the host firmware boot stack to crash with possible memory corruption during system initialisation, resulting in an integrity and availability impact to the managed system.
References
Link Resource
https://www.ibm.com/support/pages/node/7283238 Vendor Advisory
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:o:ibm:power_system_s1122_\(9824-22a\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1122_\(9824-22a\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1122_\(9824-22a\):-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
OR cpe:2.3:o:ibm:power_system_s1124_\(9824-42a\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1124_\(9824-42a\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1124_\(9824-42a\):-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
OR cpe:2.3:o:ibm:power_system_s1122s_\(9824-22b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1122s_\(9824-22b\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1122s_\(9824-22b\):-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
OR cpe:2.3:o:ibm:power_system_s1114_\(9824-41b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_s1114_\(9824-41b\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1114_\(9824-41b\):-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
OR cpe:2.3:o:ibm:power_system_l1122_\(9856-22h\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_l1122_\(9856-22h\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_l1122_\(9856-22h\):-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
OR cpe:2.3:o:ibm:power_system_l1124_\(9856-42h\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_l1124_\(9856-42h\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_l1124_\(9856-42h\):-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
OR cpe:2.3:o:ibm:power_system_e1150_\(9043-mru\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_e1150_\(9043-mru\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_e1150_\(9043-mru\):-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:ibm:power_system_s1112_\(9242-21b\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1112_\(9242-21b\):-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:ibm:power_system_s1112_\(9242-21t\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1112_\(9242-21t\):-:*:*:*:*:*:*:*

Configuration 10 (hide)

AND
cpe:2.3:o:ibm:power_system_e1080_\(9080-hex\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_e1080_\(9080-hex\):-:*:*:*:*:*:*:*

Configuration 11 (hide)

AND
cpe:2.3:o:ibm:power_system_s1022_\(9105-22a\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1022_\(9105-22a\):-:*:*:*:*:*:*:*

Configuration 12 (hide)

AND
cpe:2.3:o:ibm:power_system_s1024_\(9105-42a\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1024_\(9105-42a\):-:*:*:*:*:*:*:*

Configuration 13 (hide)

AND
cpe:2.3:o:ibm:power_system_s1022s_\(9105-22b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1022s_\(9105-22b\):-:*:*:*:*:*:*:*

Configuration 14 (hide)

AND
cpe:2.3:o:ibm:power_system_s1014_\(9105-41b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1014_\(9105-41b\):-:*:*:*:*:*:*:*

Configuration 15 (hide)

AND
cpe:2.3:o:ibm:power_system_l1022_\(9786-22h\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_l1022_\(9786-22h\):-:*:*:*:*:*:*:*

Configuration 16 (hide)

AND
cpe:2.3:o:ibm:power_system_l1024_\(9786-42h\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_l1024_\(9786-42h\):-:*:*:*:*:*:*:*

Configuration 17 (hide)

AND
cpe:2.3:o:ibm:power_system_e1050_\(9043-mrx\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_e1050_\(9043-mrx\):-:*:*:*:*:*:*:*

Configuration 18 (hide)

AND
cpe:2.3:o:ibm:power_system_s1012_\(9028-21b\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_s1012_\(9028-21b\):-:*:*:*:*:*:*:*

Configuration 19 (hide)

AND
OR cpe:2.3:o:ibm:power_system_e1180_\(9080-heu\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_system_e1180_\(9080-heu\)_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:h:ibm:power_system_e1180_\(9080-heu\):-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-19 20:17

Updated : 2026-08-25 20:39


NVD link : CVE-2026-18871

Mitre link : CVE-2026-18871

CVE.ORG link : CVE-2026-18871


JSON object : View

Products Affected

ibm

  • power_system_s1024_\(9105-42a\)
  • power_system_s1024_\(9105-42a\)_firmware
  • power_system_s1112_\(9242-21b\)
  • power_system_s1114_\(9824-41b\)_firmware
  • power_system_s1014_\(9105-41b\)
  • power_system_e1150_\(9043-mru\)_firmware
  • power_system_s1112_\(9242-21t\)
  • power_system_l1124_\(9856-42h\)
  • power_system_s1014_\(9105-41b\)_firmware
  • power_system_s1122_\(9824-22a\)_firmware
  • power_system_l1024_\(9786-42h\)
  • power_system_l1122_\(9856-22h\)_firmware
  • power_system_l1122_\(9856-22h\)
  • power_system_s1012_\(9028-21b\)
  • power_system_s1112_\(9242-21b\)_firmware
  • power_system_s1022_\(9105-22a\)_firmware
  • power_system_e1180_\(9080-heu\)
  • power_system_e1050_\(9043-mrx\)
  • power_system_s1122_\(9824-22a\)
  • power_system_l1124_\(9856-42h\)_firmware
  • power_system_s1124_\(9824-42a\)_firmware
  • power_system_s1022_\(9105-22a\)
  • power_system_l1022_\(9786-22h\)
  • power_system_s1112_\(9242-21t\)_firmware
  • power_system_e1180_\(9080-heu\)_firmware
  • power_system_s1022s_\(9105-22b\)_firmware
  • power_system_l1024_\(9786-42h\)_firmware
  • power_system_s1122s_\(9824-22b\)
  • power_system_e1080_\(9080-hex\)
  • power_system_e1050_\(9043-mrx\)_firmware
  • power_system_s1122s_\(9824-22b\)_firmware
  • power_system_s1022s_\(9105-22b\)
  • power_system_s1012_\(9028-21b\)_firmware
  • power_system_s1114_\(9824-41b\)
  • power_system_s1124_\(9824-42a\)
  • power_system_l1022_\(9786-22h\)_firmware
  • power_system_e1150_\(9043-mru\)
  • power_system_e1080_\(9080-hex\)_firmware
CWE
CWE-121

Stack-based Buffer Overflow