CVE-2026-16938 json
Power System Missing Authorization
published 2026-08-19 2 mo ago modified 2026-08-25 2 mo ago also EUVD-2026-62689
- cvss
- 6.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- ibm power_system_e1080_(9080-hex)_firmware fw1060.81
- ibm power_system_e1180_(9080-heu)_firmware fw1110.31
- ibm power_system_s922_(9009-22g)_firmware fw950.h3
- ibm power_system_h922_(9223-22s)_firmware fw950.h3
- ibm power_system_s914_(9009-41g)_firmware fw950.h3
- ibm power_system_s924_(9009-42g)_firmware fw950.h3
- ibm power_system_h924_(9223-42s)_firmware fw950.h3
- ibm power_system_e950_(9040-mr9)_firmware fw950.h3
- ibm power_system_e980_(9080-m9s)_firmware fw950.h3
- ibm.com/support/pages/node/7283896 advisory
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.9 | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H |
Affected products
- IBM Power Systems Firmware
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
ibm.com
/support/pages/node/7283896
vendor-advisory, patch
Sources
- CVE List CVE-2026-16938
- NVD CVE-2026-16938
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.