Power System Buffer Overflow
Key facts
- Attack vector
- Adjacent network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
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 the FSP management network protocol. An attacker with authenticated HMC administrator access can execute arbitrary code on the service processor, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | Power Systems Firmware | FW1120.00; FW1110.00 – FW1110.30; FW1060.00 – FW1060.80; FW950.00 – FW950.H2 | — | No fix listed | CNA |
- Power Systems Firmware VendorIBM Affected FW1120.00; FW1110.00 – FW1110.30; FW1060.00 – FW1060.80; FW950.00 – FW950.H2 Fixed in — No fix listed CNA
CPE configurations NVD · 19
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ibm:power_system_e1080_\(9080-hex\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.81 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_e1080_\(9080-hex\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_e1180_\(9080-heu\)_firmware:*:*:*:*:*:*:*:* | fw1110.00 to before fw1110.31 | Vulnerable | IBM |
| cpe:2.3:o:ibm:power_system_e1180_\(9080-heu\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_e1180_\(9080-heu\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s922_\(9009-22g\)_firmware:*:*:*:*:*:*:*:* | fw950.00 to before fw950.h3 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s922_\(9009-22g\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_h922_\(9223-22s\)_firmware:*:*:*:*:*:*:*:* | fw950.00 to before fw950.h3 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_h922_\(9223-22s\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s914_\(9009-41g\)_firmware:*:*:*:*:*:*:*:* | fw950.00 to before fw950.h3 | Vulnerable | IBM |
- cpe:2.3:o:ibm:power_system_e1080_\(9080-hex\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.81 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_e1080_\(9080-hex\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_e1180_\(9080-heu\)_firmware:*:*:*:*:*:*:*:* Versions fw1110.00 to before fw1110.31 Vulnerable ·IBM
- cpe:2.3:o:ibm:power_system_e1180_\(9080-heu\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_e1180_\(9080-heu\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s922_\(9009-22g\)_firmware:*:*:*:*:*:*:*:* Versions fw950.00 to before fw950.h3 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s922_\(9009-22g\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_h922_\(9223-22s\)_firmware:*:*:*:*:*:*:*:* Versions fw950.00 to before fw950.h3 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_h922_\(9223-22s\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s914_\(9009-41g\)_firmware:*:*:*:*:*:*:*:* Versions fw950.00 to before fw950.h3 Vulnerable ·IBM
Show 9 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:ibm:power_system_s914_\(9009-41g\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s924_\(9009-42g\)_firmware:*:*:*:*:*:*:*:* | fw950.00 to before fw950.h3 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s924_\(9009-42g\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_h924_\(9223-42s\)_firmware:*:*:*:*:*:*:*:* | fw950.00 to before fw950.h3 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_h924_\(9223-42s\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_e950_\(9040-mr9\)_firmware:*:*:*:*:*:*:*:* | fw950.00 to before fw950.h3 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_e950_\(9040-mr9\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_e980_\(9080-m9s\)_firmware:*:*:*:*:*:*:*:* | fw950.00 to before fw950.h3 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_e980_\(9080-m9s\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
- cpe:2.3:h:ibm:power_system_s914_\(9009-41g\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s924_\(9009-42g\)_firmware:*:*:*:*:*:*:*:* Versions fw950.00 to before fw950.h3 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s924_\(9009-42g\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_h924_\(9223-42s\)_firmware:*:*:*:*:*:*:*:* Versions fw950.00 to before fw950.h3 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_h924_\(9223-42s\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_e950_\(9040-mr9\)_firmware:*:*:*:*:*:*:*:* Versions fw950.00 to before fw950.h3 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_e950_\(9040-mr9\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_e980_\(9080-m9s\)_firmware:*:*:*:*:*:*:*:* Versions fw950.00 to before fw950.h3 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_e980_\(9080-m9s\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16832
- 2026-10-03 Alias added: GHSA-m373-q23q-fx37
References
More IBM Power System E1080 (9080-hex) Firmware vulnerabilities
- TI-2024-30661 IBM Flexible Service Processor hard coded credentials CVSS 3.1CRITICAL 9.8
- TI-2026-14011 Power System Improper Certificate Validation CVSS 3.1CRITICAL 9.6
- TI-2026-13912 Power System Buffer Overflow CVSS 3.1CRITICAL 9.6
- TI-2026-15412 Power System Out-of-bounds Write CVSS 3.1HIGH 8.8
- TI-2026-14313 Power System Improper Input Validation CVSS 3.1HIGH 8.8
- TI-2026-15705 Power System Buffer Overflow CVSS 3.1HIGH 8.2
Sources
- CVE-2026-16832 · CVE Program
- CVE-2026-16832 · NVD
- FIRST EPSS
- GHSA-m373-q23q-fx37 · GitHub Advisory Database · CC BY 4.0
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