Power System Missing Authorization
Summary
| CVE | CVE-2026-16938 |
|---|---|
| State | PUBLISHED |
| Assigner | ibm |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-19 19:17:10 UTC |
| Updated | 2026-08-25 15:56:28 UTC |
| Description | IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in access controls over privileged system configuration operations on the FSP. An attacker with authenticated administrator-level access to the FSP can place the managed system into a non-production operational mode, allowing certain system components to be disabled. This condition persists across FSP resets and requires explicit operator intervention — clearing the affected configuration — to restore normal operation. Successful exploitation results in an availability impact to the managed system. |
Risk And Classification
Primary CVSS: v3.1 6.9 MEDIUM from [email protected]
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H
EPSS: 0.001380000 probability, percentile 0.034120000 (date 2026-08-25)
Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.9 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H |
| 3.1 | CNA | CVSS | 6.9 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H |
CVSS v3.1 Breakdown
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | IBM | Power Systems Firmware | affected FW1120.00 | Not specified |
| CNA | IBM | Power Systems Firmware | affected FW1110.00 FW1110.30 semver | Not specified |
| CNA | IBM | Power Systems Firmware | affected FW1060.00 FW1060.80 semver | Not specified |
| CNA | IBM | Power Systems Firmware | affected FW950.00 FW950.H2 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.ibm.com/support/pages/node/7283896 | [email protected] | www.ibm.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Additional Advisory Data
Solutions
CNA: Customers with the products below should install FW1120.01(1120_167), FW1110.31(1110_134), or newer to remediate this vulnerability. Power 11 1) IBM Power System E1180 (9080-HEU) Customers with the products below should install FW1060.81(1060_184), or newer to remediate this vulnerability. Power 10 1) IBM Power System E1080 (9080-HEX) Customers with the products below should install FW950.H3(950_230), or newer to remediate this vulnerability. Power9 1) IBM Power System S922 (9009-22G) 2) IBM Power System H922 (9223-22S) 3) IBM Power System S914 (9009-41G) 4) IBM Power System S924 (9009-42G) 5) IBM Power System H924 (9223-42S) 6) IBM Power System E950 (9040-MR9) 7) IBM Power System E980 (9080-M9S) The images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/
Workarounds
CNA: Protect access to the FSP's administrative interface.