CVE-2026-72285

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

In the Linux kernel, the following vulnerability has been resolved:

KVM: TDX: Reject concurrent change to CPUID entry count

Reject KVM_TDX_INIT_VM if userspace changes cpuid.nent between the initial read and the subsequent copy of the initialization data.

tdx_td_init() first reads user_data->cpuid.nent to size the flexible kvm_tdx_init_vm copy. The copied structure also contains cpuid.nent, and that field can differ from the value used to size the allocation if userspace modifies the input concurrently. setup_tdparams_cpuids() later passes init_vm->cpuid.nent to kvm_find_cpuid_entry2(), which uses it as the array bound for the copied entries.

Require the copied count to match the value used to size the allocation so that CPUID parsing cannot access beyond the entries actually copied.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (2)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

KVM: TDX: Reject concurrent change to CPUID entry count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d6b5aba65e99531c97b146622a406c75653819d5
generic

KVM: TDX: Reject concurrent change to CPUID entry count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cfbebb55e5127dc162e73fa8956000055a78606c

Vendor Advisories for CVE-2026-72285(1)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 28× 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. 2026-08-20 06:28 UTCGHSA enrichment
  2. 2026-08-19 18:35 UTCEG score recompute
  3. 2026-08-19 18:35 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 06:40 UTCGHSA enrichment
  6. 2026-08-18 18:45 UTCEG score recompute
  7. 2026-08-18 18:45 UTCGHSA enrichment
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 13:49 UTCEPSS rescore
  10. 2026-08-18 06:52 UTCGHSA enrichment
  11. 2026-08-17 19:00 UTCEG score recompute
  12. 2026-08-17 19:00 UTCGHSA enrichment
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-17 06:20 UTCEG score recompute
  15. 2026-08-17 06:20 UTCGHSA enrichment
  16. 2026-08-17 05:59 UTCEG score recompute▲ 7.80
  17. 2026-08-17 05:59 UTCGHSA enrichment
  18. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  19. 2026-08-17 05:31 UTCEG score recompute
  20. 2026-08-17 05:31 UTCGHSA enrichment
  21. 2026-08-17 05:24 UTCMITRE cvelistV5
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 02:15 UTCEPSS rescore
  25. 2026-08-15 06:38 UTCGHSA enrichment
Show 3 more
  1. 2026-08-15 06:23 UTCNVD update
  2. 2026-08-15 06:08 UTCEG score recompute
  3. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72285?
CVE-2026-72285 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: KVM: TDX: Reject concurrent change to CPUID entry count Reject KVMTDXINIT_VM if userspace changes cpuid.nent between the initial read and the subsequent copy of the initialization data. tdxtdinit() first reads user_data->cpuid.nent…
When was CVE-2026-72285 disclosed?
CVE-2026-72285 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72285 actively exploited?
CVE-2026-72285 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.9% of all scored CVEs.
What is the CVSS score of CVE-2026-72285?
CVE-2026-72285 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-72285?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72285, 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

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