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Fencer Vulns
high 8.2

CVE-2026-17494 json

Power System Buffer Overflow

published 2026-08-19 2 mo ago modified 2026-08-25 2 mo ago also EUVD-2026-62686

cvss
8.2
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 6%
public exploits
0
none known

Summary

IBM Power Systems Firmware FW1120.00, and FW1110.00 through FW1110.30 is affected by a vulnerability in the interface between the BMC and the host system. An attacker with service access to the BMC can send a specially crafted command, allowing arbitrary code to be executed on the host system, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

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_e1180_(9080-heu)_firmware fw1110.31

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

  • IBM Power Systems Firmware

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow

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.