CVE-2026-72286

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: 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: SEV: Do not allow intra-host migration/mirroring of SNP VMs

The intra-host migration/mirroring feature is not fully implemented for SEV-SNP VMs. The proper migration requires additional SNP-specific state such as guest_req_mutex, guest_req_buf, and guest_resp_buf to be transferred or initialized on the destination.

The SNP VM mirroring requires vmsa features to be copied as well otherwise ASID would be bound to SNP range while VM is detected as a SEV VM.

Reject SNP source VMs in migration/mirroring until proper SNP state transfer is implemented.

[sean: let lines poke past 80 chars, tag for stable]

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (4)

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

KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d2f9df3b615ca0cd45899c090366945528186052
generic

KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ba06690b28be950bd46d938d9b919c4024292627
generic

KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b70404b89daad5f9f33f7ac640b1065cba639935
generic

KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6ee4140788234a6fabf59e6a50e38cdb936008cd

Vendor Advisories for CVE-2026-72286(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 32× in last 7d / 32× 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. 2026-08-21 06:44 UTCEG score recompute
  2. 2026-08-21 06:44 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 18:46 UTCGHSA enrichment
  5. 2026-08-20 06:49 UTCGHSA enrichment
  6. 2026-08-19 18:51 UTCEG score recompute
  7. 2026-08-19 18:51 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 06:53 UTCGHSA enrichment
  10. 2026-08-18 18:55 UTCEG score recompute
  11. 2026-08-18 18:55 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 06:57 UTCGHSA enrichment
  15. 2026-08-17 19:00 UTCEG score recompute
  16. 2026-08-17 19:00 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 06:20 UTCEG score recompute
  19. 2026-08-17 06:20 UTCGHSA enrichment
  20. 2026-08-17 05:59 UTCEG score recompute▲ 8.80
  21. 2026-08-17 05:59 UTCGHSA enrichment
  22. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  23. 2026-08-17 05:31 UTCEG score recompute
  24. 2026-08-17 05:31 UTCGHSA enrichment
  25. 2026-08-17 05:24 UTCMITRE cvelistV5
Show 7 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 02:15 UTCEPSS rescore
  4. 2026-08-15 06:38 UTCGHSA enrichment
  5. 2026-08-15 06:23 UTCNVD update
  6. 2026-08-15 06:08 UTCEG score recompute
  7. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72286?
CVE-2026-72286 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs The intra-host migration/mirroring feature is not fully implemented for SEV-SNP VMs. The proper migration requires additional SNP-specific state such as…
When was CVE-2026-72286 disclosed?
CVE-2026-72286 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-2026-72286 actively exploited?
CVE-2026-72286 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 92.7% of all scored CVEs.
What is the CVSS score of CVE-2026-72286?
CVE-2026-72286 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-72286?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72286, 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.

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