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CVE Record

CVE-2022-34696: Windows Hyper-V Remote Code Execution Vulnerability

Windows Hyper-V Remote Code Execution Vulnerability

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2022-34696 is a high-severity Microsoft Hyper-V remote code execution vulnerability. The source bundle identifies broad Windows client and server exposure, but the CVSS vector indicates local access, high complexity, and low privileges are required. Treat unpatched Hyper-V systems as a priority, especially virtualization hosts.

Executive priority

Prioritize remediation in the next patch cycle, faster for production Hyper-V hosts or shared virtualization infrastructure. No source shows active exploitation, but potential impact is high.

Technical view

Microsoft classifies this as a Windows Hyper-V RCE affecting multiple Windows 8.1, Windows 10, Windows 11, and Windows Server releases. The weakness is CWE-362, suggesting a race condition. CVSS 3.1 is 7.8 with local attack vector, high complexity, low privileges, changed scope, and high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is most likely on affected Windows systems where Hyper-V is installed or enabled and Microsoft security updates are missing. Server virtualization hosts deserve priority because compromise could affect sensitive workloads.

Exploitation context

The bundle does not show CISA KEV listing or active exploitation. CVSS marks exploit maturity as unproven. The available evidence supports serious impact if exploited, but not confirmed exploitation in the wild.

Researcher notes

Key constraints are local attack vector, high attack complexity, and low privileges. The source bundle provides affected platforms and impact scoring, but no exploit details, root-cause analysis, or product-specific KB mapping.

Mitigation direction

  • Apply the applicable Microsoft security update from the MSRC advisory.
  • Prioritize Hyper-V hosts and affected Windows Server systems.
  • Restrict unnecessary local access to virtualization hosts until patched.
  • Monitor Microsoft guidance for superseded or product-specific updates.

Validation and detection

  • Inventory Windows systems matching the affected versions in the bundle.
  • Identify systems with Hyper-V installed or enabled.
  • Confirm applicable Microsoft security updates are installed.
  • Review vulnerability scanner results against MSRC advisory coverage.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-362: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2022-34696 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C1.16Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2022-34696Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MicrosoftWindows 10 Version 180910.0.17763.0Listed
MicrosoftWindows Server 201910.0.17763.0Listed
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0Listed
MicrosoftWindows 10 Version 21H110.0.0Listed
MicrosoftWindows Server 202210.0.20348.0Listed
MicrosoftWindows Server version 20H210.0.0Listed
MicrosoftWindows 11 version 21H210.0.0Listed
MicrosoftWindows 10 Version 21H210.0.19043.0Listed
MicrosoftWindows 10 Version 150710.0.10240.0Listed
MicrosoftWindows 10 Version 160710.0.14393.0Listed
MicrosoftWindows Server 201610.0.14393.0Listed
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0Listed
MicrosoftWindows 8.16.3.0Listed
MicrosoftWindows Server 2012 R26.3.9600.0Listed
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-362 · source CWE mapping

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.