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Full vulnerability report · 2017
CVE-2017-0051High confidence

Microsoft Corporation Hyper-V Network Switch: security vulnerability

Microsoft Corporation · Hyper-V Network Switch

5.4MediumCVSS 3.0
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 3.10% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft Corporation Hyper-V Network Switch and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2017-0418

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

Microsoft Windows 10 1607 and Windows Server 2016 allow remote attackers to cause a denial of service (application hang) via a crafted Office document, aka "Microsoft Hyper-V Network Switch Denial of Service Vulnerability." This vulnerability is different from those described in CVE-2017-0074, CVE-2017-0076, CVE-2017-0097, CVE-2017-0098, and CVE-2017-0099.

What

Microsoft Windows 10 1607 and Windows Server 2016 allow remote attackers to cause a denial of service (application hang) via a crafted Office document, aka "Microsoft Hyper-V Network Switch Denial of Service Vulnerability." This vulnerability is different from those described in CVE-2017-0074, CVE-2017-0076, CVE-2017-0097, CVE-2017-0098, and CVE-2017-0099.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through the affected interface may attempt exploitation with elevated privileges. If successful, the issue may disrupt the affected service.

What

Microsoft Windows 10 1607 and Windows Server 2016 allow remote attackers to cause a denial of service (application hang) via a crafted Office document, aka "Microsoft Hyper-V Network Switch Denial of Service Vulnerability." This vulnerability is different from those described in CVE-2017-0074, CVE-2017-0076, CVE-2017-0097, CVE-2017-0098, and CVE-2017-0099.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through the affected interface may attempt exploitation with elevated privileges. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
the affected interface → vulnerable operation → disrupt the affected service
Attack surface
Unspecified
Privileges required
High: elevated access is required
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

Common Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRHighPrivileges required: The attacker needs elevated or administrative privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
Denial of service
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

Canadian Centre for Cyber Security · English · AV17-032Microsoft Critical security bulletins Summary – March 2017

w (4010318) MS17-022 Security Update for Microsoft XML Core Services (4010321) CVE References: CVE-2017-0001, CVE-2017-0005, CVE-2017-0006, CVE-2017-0007, CVE-2017-0008, CVE-2017-0009, CVE-2017-0010, CVE-2017-0011, CVE-2017-0012, CVE-2017-0014, CVE-2017-0015, CVE-2017-0016, CVE-2017-0017, CVE-2017-0019, CVE-2017-0020, CVE-2017-0021, CVE-2017-0022, CVE-2017-0023, CVE-2017-0024, CVE-2017-0025, CVE-2017-0026, CVE-2017-0027, CVE-2017-0029, CVE-2017-0030, CVE-2017-0031, CVE-2017-0032, CVE-2017-0033, CVE-2017-0034, CVE-2017-0035, CVE-2017-0037, CVE-2017-0038, CVE-2017-0039, CVE-2017-0042, CVE-2017-0043, CVE-2017-0045, CVE-2017-0047, CVE-2017-0050, CVE-2017-0051, CVE-2017-0052, CVE-2017-0053, CVE-2017-0055, CVE-2017-0056, CVE-2017-0057, CVE-2017-0060, CVE-2017-0061, CVE-2017-0062, CVE-2017-0063, CVE-2017-0065, CVE-2017-0066, CVE-2017-0067, CVE-2017-0068, CVE-2017-0069, CVE-2017-0070, CVE-2017-0071, CVE-2017-0072, CVE-2017-0073, CVE-2017-0074, CVE-2017-0075, CVE-2017-0076, CVE-2017-0078, CVE-2017-0079, CVE-2017-0080, CVE-2017-0081, CVE-2017-0082, CVE-2017-0083, CVE-2017-0084, CVE-2017-0085, CVE-2017-0086, CVE-2017-0087, CVE-2017-0088, CVE-2017-0089, CVE-2017-0090, CVE-2017-0091, CVE-2017-0092, CVE-2017-0094, CVE-2017-0095, CVE-2017-0096, CVE-2017-0097, CVE-2017-0098, CVE-2017-0099, CVE-2017-0100, CVE

Official advisory ↗
CERT-FR · French · CERTFR-2017-AVI-082Multiples vulnérabilités dans Microsoft Windows

.cve.org/CVERecord?id=CVE-2017-0025 Référence CVE CVE-2017-0026 https://www.cve.org/CVERecord?id=CVE-2017-0026 Référence CVE CVE-2017-0038 https://www.cve.org/CVERecord?id=CVE-2017-0038 Référence CVE CVE-2017-0039 https://www.cve.org/CVERecord?id=CVE-2017-0039 Référence CVE CVE-2017-0042 https://www.cve.org/CVERecord?id=CVE-2017-0042 Référence CVE CVE-2017-0043 https://www.cve.org/CVERecord?id=CVE-2017-0043 Référence CVE CVE-2017-0045 https://www.cve.org/CVERecord?id=CVE-2017-0045 Référence CVE CVE-2017-0047 https://www.cve.org/CVERecord?id=CVE-2017-0047 Référence CVE CVE-2017-0050 https://www.cve.org/CVERecord?id=CVE-2017-0050 Référence CVE CVE-2017-0051 https://www.cve.org/CVERecord?id=CVE-2017-0051 Référence CVE CVE-2017-0055 https://www.cve.org/CVERecord?id=CVE-2017-0055 Référence CVE CVE-2017-0056 https://www.cve.org/CVERecord?id=CVE-2017-0056 Référence CVE CVE-2017-0057 https://www.cve.org/CVERecord?id=CVE-2017-0057 Référence CVE CVE-2017-0060 https://www.cve.org/CVERecord?id=CVE-2017-0060 Référence CVE CVE-2017-0061 https://www.cve.org/CVERecord?id=CVE-2017-0061 Référence CVE CVE-2017-0062 https://www.cve.org/CVERecord?id=CVE-2017-0062 Référence CVE CVE-2017-0063 https://www.cve.org/CVERecord?id=CVE-2017-0063 Référence CVE CVE-2017-0072 https://www.cve.org/CVERecord?id=CVE-2017-0072 Ré

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2017-001850Microsoft Windows 10 および Windows Server 2016 におけるサービス運用妨害 (DoS) の脆弱性

Microsoft Windows 10 および Windows Server 2016 には、サービス運用妨害 (アプリケーションハング) 状態にされる脆弱性が存在します。 マイクロソフトセキュリティ情報には、この脆弱性は「Microsoft Hyper-V ネットワーク スイッチのサービス拒否の脆弱性」と記載されています。 本脆弱性は、CVE-2017-0074、CVE-2017-0076、CVE-2017-0097、CVE-2017-0098、および CVE-2017-0099 とは異なる脆弱性です。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-4711MS 3월 보안 위협에 따른 정기 보안 업데이트 권고

032, 0034, 0035, 0037, 0046, 0067, 0070, 0071, 0094, 0131, 0132, 0133, 0134, 0136, 0137, 0138, 0141, 0150, 0151) - 다중 정보노출 취약점(CVE-2017-0009, 0011, 0017, 0065, 0068) - 다중 스푸핑 취약점(CVE-2017-0012, 0033, 0069) - Edge 보안기능 우회 취약점(CVE-2017-0066, 0135, 0140) o 영향 : 원격코드 실행 o 중요도 : 긴급 ##### □ 영향 받는 소프트웨어 o 참고사이트 - 한글 : https://technet.microsoft.com/ko-kr/library/security/MS17-007 - 영문 : https://technet.microsoft.com/en-us/library/security/MS17-007 ##### □ 해결책 o 영향 받는 소프트웨어를 이용하는 경우 마이크로소프트사의 보안 패치 적용 [MS17-008] Windows Hyper-V용 보안 업데이트 ##### □ 설명 o 공격자가 Hyper-V 호스트 운영 체제에서 특수 제작된 응용 프로그램을 실행할 경우, 원격 코드 실행을 허용할 수 있는 취약점 o 관련취약점 : - Hyper-V 서비스 거부 취약점(CVE-2017-0051, 0074, 0076, 0097, 0098, 0099) - Hyper-V 원격코드 실행 취약점(CVE-2017-0021, 0075, 0095, 0109) - Hyper-V 정보노출 취약점(CVE-2017-0096) o 영향 : 원격코드 실행 o 중요도 : 긴급 ##### □ 영향 받는 소프트웨어 o 참고사이트 - 한글 : https://technet.microsoft.com/ko-kr/library/security/MS17-008 - 영문 : https://technet.microsoft.com/en-us/library/security/MS17-008 ##### □ 해결책 o 영향 받는 소프트웨어를 이용하는 경우 마이크로소프트사의 보안 패치 적용 [MS17-009] Windows PDF 라이브러리용 보안 업데이트 ##### □ 설명 o 이용자가 특수하게 제작된 악성 PDF 콘텐츠를 온라인으로 보거나 악성 PDF 파일을 열람하는 경우, 원격코드 실행을 허용할 수 있는 취약점 o 관련취약점 : - PDF 메모리 손상 취약점(CVE-2017-0023) o 영향 : 원격코드 실행 o 중요도 : 긴급 ##### □ 영향 받는 소프트웨어 o 참고사이트 - 한글 : https://technet.microsoft.com/ko-kr/library/securit

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Hyper-V Network Switch: Windows 10 1607 and Windows Server 2016
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 17 Mar 2017 · Last source change 5 Aug 2024, 12:55 UTC · CWE not yet assigned

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-01
European sourceENISA EUVD · EUVD-2017-0418
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceUnavailable
NVD statusNVD modified after enrichment

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. ENISA EUVD mappingEUVD-2017-0418 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2017-0418"}
    ENISA EUVD ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added patch: portal.msrc.microsoft.com/CVE-2017-0051; added remediation: portal.msrc.microsoft.com/CVE-2017-0051.
    Before
    no authoritative guidance recorded
    After
    patch: portal.msrc.microsoft.com/CVE-2017-0051 · remediation: portal.msrc.microsoft.com/CVE-2017-0051
    portal.msrc.microsoft.com ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    Windows 10 1607 and Windows Server 2016 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Windows 10 1607 and Windows Server 2016 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  4. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    portal.msrc.microsoft.com ↗
  5. SeveritySeverity changed from Unknown to Medium.
    Before
    Unknown
    After
    Medium
    NIST NVD ↗
  6. CVSS scoreCVSS score changed from not recorded to 5.4 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H).
    Before
    not recorded
    After
    5.4 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H)
    NIST NVD ↗
  7. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2017-0418↗Patch or update reference↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2017-0051 · cve.blacktree.nl