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8.8
HIGH CVSS 3.1
CVE-2026-72286
KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs
Overview
Description

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]

Details
INFO

Published Date :

Aug. 15, 2026, 6:21 a.m.

Last Modified :

Aug. 17, 2026, 6:18 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-72286 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Update the Linux kernel to prevent incorrect migration of SEV-SNP virtual machines.
  • Update the Linux kernel.
  • Apply the provided patch for KVM: SEV.
  • Reject SNP source VMs for migration.
  • Implement full SNP state transfer.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-72286.

URL Resource
https://git.kernel.org/stable/c/6ee4140788234a6fabf59e6a50e38cdb936008cd
https://git.kernel.org/stable/c/b70404b89daad5f9f33f7ac640b1065cba639935
https://git.kernel.org/stable/c/ba06690b28be950bd46d938d9b919c4024292627
https://git.kernel.org/stable/c/d2f9df3b615ca0cd45899c090366945528186052
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-72286 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-72286 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-72286 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-72286 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 17, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': 'b70404b89daad5f9f33f7ac640b1065cba639935', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': 'ba06690b28be950bd46d938d9b919c4024292627', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': 'd2f9df3b615ca0cd45899c090366945528186052', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': '6ee4140788234a6fabf59e6a50e38cdb936008cd', 'versionType': 'git'}], 'programFiles': ['arch/x86/kvm/svm/sev.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['arch/x86/kvm/svm/sev.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': 'b70404b89daad5f9f33f7ac640b1065cba639935', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': 'ba06690b28be950bd46d938d9b919c4024292627', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': 'd2f9df3b615ca0cd45899c090366945528186052', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': '6ee4140788234a6fabf59e6a50e38cdb936008cd', 'versionType': 'git'}], 'programFiles': ['arch/x86/kvm/svm/sev.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['arch/x86/kvm/svm/sev.c'], 'defaultStatus': 'affected'}]
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 15, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': 'b70404b89daad5f9f33f7ac640b1065cba639935', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': 'ba06690b28be950bd46d938d9b919c4024292627', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': 'd2f9df3b615ca0cd45899c090366945528186052', 'versionType': 'git'}, {'status': 'affected', 'version': '1dfe571c12cf99244b933208fb77f29471ded677', 'lessThan': '6ee4140788234a6fabf59e6a50e38cdb936008cd', 'versionType': 'git'}], 'programFiles': ['arch/x86/kvm/svm/sev.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['arch/x86/kvm/svm/sev.c'], 'defaultStatus': 'affected'}]
    Added Description 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]
    Added Reference https://git.kernel.org/stable/c/6ee4140788234a6fabf59e6a50e38cdb936008cd
    Added Reference https://git.kernel.org/stable/c/b70404b89daad5f9f33f7ac640b1065cba639935
    Added Reference https://git.kernel.org/stable/c/ba06690b28be950bd46d938d9b919c4024292627
    Added Reference https://git.kernel.org/stable/c/d2f9df3b615ca0cd45899c090366945528186052
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
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Scope
Confidentiality Impact
Integrity Impact
Availability Impact