Low severity · published Sep 24, 2026
CVE-2026-18857
This Power System update is being released to address
3.4
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
None
Availability
Low
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
OP
OPENBMC · IBM
FW1120.00 through FW1120.01; FW1110.00 through FW1110.31; FW1060.00 through FW1060.81 · source: vendor
PS
Power System E1050 (9043-mrx) Firmware · Ibm
fw1060.00 before fw1060.82 · source: NVD
PS
Power System E1150 (9043-mru) Firmware · Ibm
fw1110.00 before fw1110.32; fw1120.00 before fw1120.02 · source: NVD
PS
Power System L1022 (9786-22h) Firmware · Ibm
fw1060.00 before fw1060.82 · source: NVD
PS
Power System L1024 (9786-42h) Firmware · Ibm
fw1060.00 before fw1060.82 · source: NVD
PS
Power System L1122 (9856-22h) Firmware · Ibm
fw1110.00 before fw1110.32; fw1120.00 before fw1120.02 · source: NVD
PS
Power System L1124 (9856-42h) Firmware · Ibm
fw1110.00 before fw1110.32; fw1120.00 before fw1120.02 · source: NVD
PS
Power System S1012 (9028-21b) Firmware · Ibm
fw1060.00 before fw1060.82 · source: NVD
PS
Power System S1014 (9105-41b) Firmware · Ibm
fw1060.00 before fw1060.82 · source: NVD
PS
Power System S1022 (9105-22a) Firmware · Ibm
fw1060.00 before fw1060.82 · source: NVD
PS
Power System S1022s (9105-22b) Firmware · Ibm
fw1060.00 before fw1060.82 · source: NVD
PS
Power System S1024 (9105-42a) Firmware · Ibm
fw1060.00 before fw1060.82 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18857
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18857
Patch
https://www.ibm.com/support/pages/node/7289253
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