Power System Insufficient Entropy
Priority LOW 26CWE-331Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
IBM PowerVM Hypervisor Platform KeyStore (PKS) and virtual TPM FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 use persistent storage key seeds that result in an AES key with reduced strength. An attacker with access to the service processor or HMC could exploit this weakness to derive the encryption key and access the data.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00105 1st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 | PowerVM Hypervisor | FW1110.00 – FW1110.20; FW1060.00 – FW1060.71; FW950.00 – FW950.H2 | — | No fix listed | CNA |
- PowerVM Hypervisor VendorIBM Affected FW1110.00 – FW1110.20; FW1060.00 – FW1060.71; FW950.00 – FW950.H2 Fixed in — No fix listed CNA
CPE configurations NVD · 60
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ibm:power_system_s1122_\(9824-22a\)_firmware:*:*:*:*:*:*:*:* | fw1110.00 to before fw1110.30 | Vulnerable | IBM |
| cpe:2.3:o:ibm:power_system_s1122_\(9824-22a\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1122_\(9824-22a\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s1124_\(9824-42a\)_firmware:*:*:*:*:*:*:*:* | fw1110.00 to before fw1110.30 | Vulnerable | IBM |
| cpe:2.3:o:ibm:power_system_s1124_\(9824-42a\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1124_\(9824-42a\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s1122s_\(9824-22b\)_firmware:*:*:*:*:*:*:*:* | fw1110.00 to before fw1110.30 | Vulnerable | IBM |
| cpe:2.3:o:ibm:power_system_s1122s_\(9824-22b\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1122s_\(9824-22b\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s1114_\(9824-41b\)_firmware:*:*:*:*:*:*:*:* | fw1110.00 to before fw1110.30 | Vulnerable | IBM |
- cpe:2.3:o:ibm:power_system_s1122_\(9824-22a\)_firmware:*:*:*:*:*:*:*:* Versions fw1110.00 to before fw1110.30 Vulnerable ·IBM
- cpe:2.3:o:ibm:power_system_s1122_\(9824-22a\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1122_\(9824-22a\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s1124_\(9824-42a\)_firmware:*:*:*:*:*:*:*:* Versions fw1110.00 to before fw1110.30 Vulnerable ·IBM
- cpe:2.3:o:ibm:power_system_s1124_\(9824-42a\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1124_\(9824-42a\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s1122s_\(9824-22b\)_firmware:*:*:*:*:*:*:*:* Versions fw1110.00 to before fw1110.30 Vulnerable ·IBM
- cpe:2.3:o:ibm:power_system_s1122s_\(9824-22b\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1122s_\(9824-22b\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s1114_\(9824-41b\)_firmware:*:*:*:*:*:*:*:* Versions fw1110.00 to before fw1110.30 Vulnerable ·IBM
Show 50 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ibm:power_system_s1114_\(9824-41b\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1114_\(9824-41b\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_l1122_\(9856-22h\)_firmware:*:*:*:*:*:*:*:* | fw1110.00 to before fw1110.30 | Vulnerable | IBM |
| cpe:2.3:o:ibm:power_system_l1122_\(9856-22h\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_l1122_\(9856-22h\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_l1124_\(9856-42h\)_firmware:*:*:*:*:*:*:*:* | fw1110.00 to before fw1110.30 | Vulnerable | IBM |
| cpe:2.3:o:ibm:power_system_l1124_\(9856-42h\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_l1124_\(9856-42h\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_e1150_\(9043-mru\)_firmware:*:*:*:*:*:*:*:* | fw1110.00 to before fw1110.30 | Vulnerable | IBM |
| cpe:2.3:o:ibm:power_system_e1150_\(9043-mru\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_e1150_\(9043-mru\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s1112_\(9242-21b\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1112_\(9242-21b\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s1112_\(9242-21t\)_firmware:fw1120.00:*:*:*:*:*:*:* | fw1120.00 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1112_\(9242-21t\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_e1080_\(9080-hex\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.72 | 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_s1022_\(9105-22a\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.72 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1022_\(9105-22a\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s1024_\(9105-42a\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.72 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1024_\(9105-42a\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s1022s_\(9105-22b\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.72 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1022s_\(9105-22b\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s1014_\(9105-41b\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.72 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1014_\(9105-41b\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_l1022_\(9786-22h\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.72 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_l1022_\(9786-22h\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_l1024_\(9786-42h\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.72 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_l1024_\(9786-42h\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_e1050_\(9043-mrx\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.72 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_e1050_\(9043-mrx\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_s1012_\(9028-21b\)_firmware:*:*:*:*:*:*:*:* | fw1060.00 to before fw1060.72 | Vulnerable | IBM |
| cpe:2.3:h:ibm:power_system_s1012_\(9028-21b\):-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:power_system_e1180_\(9080-heu\)_firmware:*:*:*:*:*:*:*:* | fw1110.00 to before fw1110.30 | 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: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:o:ibm:power_system_s1114_\(9824-41b\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1114_\(9824-41b\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_l1122_\(9856-22h\)_firmware:*:*:*:*:*:*:*:* Versions fw1110.00 to before fw1110.30 Vulnerable ·IBM
- cpe:2.3:o:ibm:power_system_l1122_\(9856-22h\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_l1122_\(9856-22h\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_l1124_\(9856-42h\)_firmware:*:*:*:*:*:*:*:* Versions fw1110.00 to before fw1110.30 Vulnerable ·IBM
- cpe:2.3:o:ibm:power_system_l1124_\(9856-42h\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_l1124_\(9856-42h\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_e1150_\(9043-mru\)_firmware:*:*:*:*:*:*:*:* Versions fw1110.00 to before fw1110.30 Vulnerable ·IBM
- cpe:2.3:o:ibm:power_system_e1150_\(9043-mru\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_e1150_\(9043-mru\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s1112_\(9242-21b\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1112_\(9242-21b\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s1112_\(9242-21t\)_firmware:fw1120.00:*:*:*:*:*:*:* Versions fw1120.00 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1112_\(9242-21t\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_e1080_\(9080-hex\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.72 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_s1022_\(9105-22a\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.72 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1022_\(9105-22a\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s1024_\(9105-42a\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.72 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1024_\(9105-42a\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s1022s_\(9105-22b\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.72 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1022s_\(9105-22b\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s1014_\(9105-41b\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.72 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1014_\(9105-41b\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_l1022_\(9786-22h\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.72 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_l1022_\(9786-22h\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_l1024_\(9786-42h\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.72 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_l1024_\(9786-42h\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_e1050_\(9043-mrx\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.72 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_e1050_\(9043-mrx\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_s1012_\(9028-21b\)_firmware:*:*:*:*:*:*:*:* Versions fw1060.00 to before fw1060.72 Vulnerable ·IBM
- cpe:2.3:h:ibm:power_system_s1012_\(9028-21b\):-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:power_system_e1180_\(9080-heu\)_firmware:*:*:*:*:*:*:*:* Versions fw1110.00 to before fw1110.30 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
- 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-2026-4936
- 2026-10-03 Alias added: GHSA-wmfq-mfcf-jvxp
References
More IBM Power System E1050 (9043-mrx) Firmware vulnerabilities
- 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-2026-06926 This Power System update is being released to address incorrect authorization CVSS 3.1HIGH 8.8
- TI-2026-15705 Power System Buffer Overflow CVSS 3.1HIGH 8.2
- TI-2026-14226 Power System Out-of-bounds Write CVSS 3.1HIGH 8.2
- TI-2026-14221 Power System Buffer Overflow CVSS 3.1HIGH 8.2
Sources
- CVE-2026-4936 · CVE Program
- CVE-2026-4936 · NVD
- FIRST EPSS
- GHSA-wmfq-mfcf-jvxp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences