Public vulnerability disclosure

CVE-2026-17427

This Power System update is being released to address

publishedCWE-617

IBM Power Systems Firmware FW1060.00 through FW1060.81, OP940.00 through OP940.A2, OP910.00 through OP910.95, and OP940.00 through OP940.82 could allow a remote attacker to cause a denial of service due to improper validation of input length.

Technical severity6.5 mediumCVSS 3.1 · CNA: ibm
Published2026-11-08Source updated 2026-11-08
Collected2026-11-081 attributed source

Fixes and workarounds

Fix

Customers with the products below should install FW1060.82(1060_199) or newer to remediate this vulnerability. Power 10 1) IBM Power System S1022 (9105-22A) 2) IBM Power System S1024 (9105-42A) 3) IBM Power System S1022s (9105-22B) 4) IBM Power System S1014 (9105-41B) 5) IBM Power System L1022 (9786-22H) 6) IBM Power System L1024 (9786-42H) 7) IBM Power System E1050 (9043-MRX) 8) IBM Power System S1012 (9028-21B) Customers with the products below should install OP940.A3, OP910.96 or newer to remediate this vulnerability. OpenPower 9 1) IBM Power System AC922 (8335-GTG) 2) IBM Power System AC922 (8335-GTC, 8335-GTW) 3) IBM Power System AC922 (8335-GTH, 8335-GTX) Customers with the products below should install OP940.83 or newer to remediate this vulnerability. 1) IBM Power Hardware Management Console (7063-CR2) The images mentioned above can be located at IBM Fix Central :  https://www.ibm.com/support/fixcentral/

Source: CNA: ibm

Workaround

Protect access to the BMC's network interface by operating it on a private network or behind a firewall.

Source: CNA: ibm

Fix

The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.

Source: CNA: ibm

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
OPENBMC
IBM
≥ FW1060.00; ≤ FW1060.81 (affected, semver)
≥ OP940.00; ≤ OP940.A2 (affected, semver)
≥ OP910.00; ≤ OP910.95 (affected, semver)
CNA: ibm
Power Hardware Management Console
IBM
≥ OP940.00; ≤ OP940.82 (affected, semver) CNA: ibm

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
3.1 / 6.5
medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCNA: ibm

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

For agents and automation

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