CVE-2026-12943

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-30. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
57%
KEV
Not listed

Published

July 30, 2026

Last Modified

July 31, 2026

Advisory Details (1)

Auto-updated Jul 31, 2026
No patch confirmed yet.
generic

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

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

Vendor Advisories for CVE-2026-12943(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 17× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-01 04:15 UTCEPSS rescore
  2. 2026-08-01 03:58 UTCGHSA enrichment
  3. 2026-08-01 00:02 UTCGHSA enrichment
  4. 2026-07-31 20:05 UTCGHSA enrichment
  5. 2026-07-31 16:08 UTCGHSA enrichment
  6. 2026-07-31 12:11 UTCGHSA enrichment
  7. 2026-07-31 08:15 UTCGHSA enrichment
  8. 2026-07-31 04:18 UTCEG score recompute
  9. 2026-07-31 04:18 UTCGHSA enrichment
  10. 2026-07-31 04:07 UTCEG score recompute
  11. 2026-07-31 04:07 UTCGHSA enrichment
  12. 2026-07-31 03:30 UTCGHSA enrichment
  13. 2026-07-30 23:33 UTCEG score recompute
  14. 2026-07-30 23:33 UTCGHSA enrichment
  15. 2026-07-30 19:30 UTCEG score recompute
  16. 2026-07-30 18:27 UTCEG score recompute
  17. 2026-07-30 18:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12943?
CVE-2026-12943 is a critical vulnerability published on July 30, 2026. 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…
When was CVE-2026-12943 disclosed?
CVE-2026-12943 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on July 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12943 actively exploited?
CVE-2026-12943 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 43.2% of all scored CVEs.
What is the CVSS score of CVE-2026-12943?
CVE-2026-12943 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-12943?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12943, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-12943

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