How severe is CVE-2026-12943?

CVE-2026-12943 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-12943 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-12943?

CVE-2026-12943 affects Ibm Hardware Management Console. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-12943?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-12943 published?

CVE-2026-12943 was published on 2026-07-30 and last updated on 2026-08-10.

CVE-2026-12943

CVE-2026-12943 is a critical-severity vulnerability in Ibm Hardware Management Console with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Ibm Hardware Management Console
Published: 2026-07-30
Last modified: 2026-08-10

Description

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 privileges on the system due to improper validation of user supplied input.

Frequently asked questions

What is 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 privileges on the system due to improper validation of user supplied input.
How severe is CVE-2026-12943?: CVE-2026-12943 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-12943 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-12943?: CVE-2026-12943 affects Ibm Hardware Management Console. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-12943?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-12943 published?: CVE-2026-12943 was published on 2026-07-30 and last updated on 2026-08-10.

References

https://www.ibm.com/support/pages/node/7278667

Affected products (1)

cpe:2.3:a:ibm:hardware_management_console:*:*:*:*:*:*:*:*

More vulnerabilities in Ibm Hardware Management Console

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