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Fencer Vulns
high 7.3

CVE-2026-17097 json

Power System Improper Validation

published 2026-08-19 2 mo ago modified 2026-08-25 2 mo ago also EUVD-2026-62870

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

IBM PowerVM Hypervisor 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 PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call causing a virtual processor to become permanently unresponsive, requiring a full platform re-IPL to restore normal operation. In some cases this may also cause the guest to inject a small amount of data into hypervisor or partition memory with no attacker control over the target location. Successful exploitation results in an integrity and availability impact to the managed system.

Patch / fix

  • ibm power_system_s1122_(9824-22a)_firmware fw1110.31
  • ibm power_system_s1124_(9824-42a)_firmware fw1110.31
  • ibm power_system_s1122s_(9824-22b)_firmware fw1110.31
  • ibm power_system_s1114_(9824-41b)_firmware fw1110.31
  • ibm power_system_l1122_(9856-22h)_firmware fw1110.31
  • ibm power_system_l1124_(9856-42h)_firmware fw1110.31
  • ibm power_system_e1150_(9043-mru)_firmware fw1110.31
  • ibm power_system_e1080_(9080-hex)_firmware fw1060.81
  • ibm power_system_s1022_(9105-22a)_firmware fw1060.81
  • ibm power_system_s1024_(9105-42a)_firmware fw1060.81
  • ibm power_system_s1022s_(9105-22b)_firmware fw1060.81
  • ibm power_system_s1014_(9105-41b)_firmware fw1060.81
  • ibm power_system_l1022_(9786-22h)_firmware fw1060.81
  • ibm power_system_l1024_(9786-42h)_firmware fw1060.81
  • ibm power_system_e1050_(9043-mrx)_firmware fw1060.81
  • ibm power_system_s1012_(9028-21b)_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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H

Affected products

  • IBM PowerVM Hypervisor

Classification

Weakness
  • CWE-129 Improper Validation of Array Index

References

Sources

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.