What is CVE-2026-12943?

CVE-2026-12943 is a critical-severity vulnerability in Ibm Hmc V10.3.1050.0, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-07-30.

How severe is CVE-2026-12943?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Ibm Hmc V10.3.1050.0

CVE-2026-12943

IBM HMC V10.3.1050.0 through 10.3.1064.0 and IBM HMC V11.1.1110.0 through 11.1.1112.0 Management systems in IBM Power environments (HMC and Novalink) could allow an unauthenticated user to execute arbitrary commands with elevated privilege…

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ibm Hmc V10.3.1050.0 — versions 10.3.1050.0
Ibm Hmc V11.1.1110.0 — versions 11.1.1110.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

psirt@us.ibm.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-12943?: CVE-2026-12943 is a critical-severity vulnerability in Ibm Hmc V10.3.1050.0, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-07-30.
How severe is CVE-2026-12943?: Critical severity. CVSS v3 base score is 9.8 out of 10.