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Security Bulletin: This Power Hardware Management Console update is being released to address CVE-2026-12943

Security Bulletin


Summary

Vulnerability in Power Hardware Management Console (HMC) could allow an unauthenticated attacker to gain elevated privileges and execute arbitrary commands. HMC has addressed the applicable CVE.

Vulnerability Details

CVEID:   CVE-2026-12943
DESCRIPTION:   Management systems in IBM Power environments (HMC and Novalink) could allow an unauthenticated user to execute arbitrary commands with elevated privileges on the system due to improper validation of user supplied input.
CWE:   CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSS Source:   IBM
CVSS Base score:   9.8
CVSS Vector:   (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
HMC V10.3.1050.0V10.3.1050.0 - V10.3.1064.0
HMC V11.1.1110.0V11.1.1110.0 - V11.1.1112.0

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now. The following fixes are available on IBM Fix Central at:

V10R3

https://www.ibm.com/support/fixcentral/main/selectFixes?parent=powersysmgmntcouncil&product=ibm~hmc~9100HMCppc&release=V10R3&platform=All 

https://www.ibm.com/support/fixcentral/main/selectFixes?parent=powersysmgmntcouncil&product=ibm~hmc~vHMC&release=V10R3&platform=All  

V11R1

https://www.ibm.com/support/fixcentral/main/selectFixes?parent=powersysmgmntcouncil&product=ibm~hmc~9100HMCppc&release=V11R1&platform=All 

https://www.ibm.com/support/fixcentral/main/selectFixes?parent=powersysmgmntcouncil&product=ibm~hmc~vHMC&release=V11R1&platform=All 

 

 

Product
Affected Version(s)
VRMF
APAR
Remediation/Fix
Power HMC
V10.3.1050.0 - V10.3.1064.0
V10.3.1064.1 x86

MB04527

MF71762

Power HMC
V10.3.1050.0 - V10.3.1064.0
V10.3.1064.1 ppc

MB04528

MF71763

Power HMC
V11.1.1110.0 - V11.1.1112.0
V11.1.1112.1 x86

MB04529

MF71764 

Power HMC
V11.1.1110.0 - V11.1.1112.0
V11.1.1112.1 ppc
MB04530

MF71765 

 

 

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

01 Jul 2026: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

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Document Information

Modified date:
30 June 2026

Initial Publish date:
01 July 2026

UID

ibm17278667