BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2022
CVE-2022-23267High confidence

.NET and Visual Studio Denial of Service Vulnerability

Microsoft · .NET Core 3.1

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 5.70% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft .NET Core 3.1 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: Within 30 daysRemediation target: Within 180 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.

Open-source package ranges66 source-attributed ranges

These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.

Ecosystem and packageAffected rangeFirst fixed versionEvidence
NuGetMicrosoft.AspNetCore.App.Runtime.linux-armECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-armECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-armECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64ECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64ECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64ECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-armECOSYSTEM: introduced 5.0.1; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-armECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64ECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64ECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64ECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64ECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64ECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64ECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64ECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64ECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64ECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64ECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64ECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64ECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64ECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-armECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-armECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-armECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64ECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64ECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64ECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-x64ECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-x64ECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-x64ECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-x86ECOSYSTEM: introduced 3.0.0; fixed 3.1.253.1.25OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-x86ECOSYSTEM: introduced 5.0.0; fixed 5.0.175.0.17OSV record ↗aggregator derived · 4 Sep 2025
NuGetMicrosoft.AspNetCore.App.Runtime.win-x86ECOSYSTEM: introduced 6.0.0; fixed 6.0.56.0.5OSV record ↗aggregator derived · 4 Sep 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-arm>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-arm>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-arm>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-arm64>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-arm64>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-arm64>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>= 5.0.1, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-x64>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-x64>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.linux-x64>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.osx-arm64>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.osx-x64>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.osx-x64>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.osx-x64>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-arm>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-arm>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-arm>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-arm64>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-arm64>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-arm64>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-x64>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-x64>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-x64>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-x86>= 3.0.0, < 3.1.253.1.25GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-x86>= 5.0.0, < 5.0.175.0.17GitHub advisory ↗upstream repository advisory · 2 Jan 2025
nugetMicrosoft.AspNetCore.App.Runtime.win-x86>= 6.0.0, < 6.0.56.0.5GitHub advisory ↗upstream repository advisory · 2 Jan 2025
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-2022-7011

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 actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

.NET and Visual Studio Denial of Service Vulnerability

What

.NET and Visual Studio Denial of Service Vulnerability

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 a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

.NET and Visual Studio Denial of Service Vulnerability

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 a network path may attempt exploitation without authentication or user interaction. 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
a network path → vulnerable operation → disrupt the affected service
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's 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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's 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.
NetworkUnauthenticatedDenial of service
A

Official authority intelligence

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

Cyber Security Agency of Singapore · English · CSA-SB-20220511Security Bulletin 11 May 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 11 May 2022, published on 11 May 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-449Multiples vulnérabilités dans Microsoft .Net

De multiples vulnérabilités ont été corrigées dans Microsoft .Net . Elles permettent à un attaquant de provoquer un déni de service.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-450Multiples vulnérabilités dans les produits Microsoft

De multiples vulnérabilités ont été corrigées dans les produits Microsoft . Elles permettent à un attaquant de provoquer une exécution de code à distance, un contournement de la fonctionnalité de sécurité, un déni de service et une élévation de privilèges.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-001866.NET および Microsoft Visual Studio におけるサービス運用妨害 (DoS) の脆弱性

.NET および Microsoft Visual Studio には、.NET に不備があるため、サービス運用妨害 (DoS) の脆弱性が存在します。 本脆弱性は、CVE-2022-23267 および CVE-2022-29145 とは異なる脆弱性です。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-001863複数の Microsoft 製品におけるサービス運用妨害 (DoS) の脆弱性

複数の Microsoft 製品には、.NET および Visual Studio に不備があるため、サービス運用妨害 (DoS) の脆弱性が存在します。 本脆弱性は、CVE-2022-29117 および CVE-2022-29145 とは異なる脆弱性です。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-001833.NET および Microsoft Visual Studio におけるサービス運用妨害 (DoS) の脆弱性

NET および Microsoft Visual Studio には、.NET に不備があるため、サービス運用妨害 (DoS) の脆弱性が存在します。 本脆弱性は、CVE-2022-23267 および CVE-2022-29117 とは異なる脆弱性です。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5632MS 6월 보안 위협에 따른 정기 보안 업데이트 권고

R2 긴급 원격 코드 실행 Windows Server 2012 긴급 원격 코드 실행 Microsoft Office 중요 원격 코드 실행 Microsoft SharePoint 중요 원격 코드 실행 Microsoft .NET 중요 권한 상승 Microsoft Visual Studio 중요 권한 상승 Microsoft Azure 관련 소프트웨어 중요 원격 코드 실행 Microsoft SQL Server 중요 원격 코드 실행 SCOM(System Center Operations Manager) 중요 권한 상승 [참고 사이트] [1] (한글) https://portal.msrc.microsoft.com/ko-kr/security-guidance [2] (영문) https://portal.msrc.microsoft.com/en-us/security-guidance [3] https://msrc.microsoft.com/update-guide/releaseNote/2022-Jun [4] https://msrc.microsoft.com/update-guide o 취약점 요약 정보 제품 카테고리 CVE 번호 CVE 제목 .NET Framework CVE-2022-26832 .NET Framework 서비스 거부 취약성 .NET and Visual Studio CVE-2022-23267 .NET 및 Visual Studio 서비스 거부 취약성 .NET and Visual Studio CVE-2022-30184 .NET 및 Visual Studio 정보 공개 취약성 Microsoft Windows Codecs Library CVE-2022-30167 AV1 비디오 확장 원격 코드 실행 취약성 Microsoft Windows Codecs Library CVE-2022-30193 AV1 비디오 확장 원격 코드 실행 취약성 Azure OMI CVE-2022-29149 Azure Open Management Infrastructure (OMI) Elevation of Privilege Vulnerability Azure Real Time Operating System CVE-2022-30177 Azure RTOS GUIX Studio 원격 코드 실행 취약성 Azure Real Time Operating System CVE-2022-30178 Azure RTOS GUIX Studio 원격 코드 실행 취약성 Azure Real Time Operating System CVE-2022-30179 Azure RTOS GUIX Studio 원격 코드 실행 취약성 Azure Real Time Operating System CVE-2022-30180

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5599MS 5월 보안 위협에 따른 정기 보안 업데이트 권고

ows Server 2016 긴급 원격 코드 실행 Windows 8.1 및 Server 2012 R2 긴급 원격 코드 실행 Windows Server 2012 긴급 원격 코드 실행 Microsoft Office 중요 원격 코드 실행 Microsoft SharePoint 중요 원격 코드 실행 Microsoft Exchange Server 중요 권한 상승 Microsoft .NET 중요 서비스 거부 Microsoft Visual Studio 중요 원격 코드 실행 원격 데스크톱 클라이언트 긴급 원격 코드 실행 [참고 사이트] [1] (한글) https://portal.msrc.microsoft.com/ko-kr/security-guidance [2] (영문) https://portal.msrc.microsoft.com/en-us/security-guidance [3] https://msrc.microsoft.com/update-guide/releaseNote/2022-May [4] https://msrc.microsoft.com/update-guide o 취약점 요약 정보 제품 카테고리 CVE 번호 CVE 제목 .NET Framework CVE-2022-30130 .NET Framework 서비스 거부 취약성 .NET and Visual Studio CVE-2022-23267 .NET 및 Visual Studio 서비스 거부 취약성 .NET and Visual Studio CVE-2022-29117 .NET 및 Visual Studio 서비스 거부 취약성 .NET and Visual Studio CVE-2022-29145 .NET 및 Visual Studio 서비스 거부 취약성 Windows Active Directory CVE-2022-26923 Active Directory Domain Services Elevation of Privilege Vulnerability Windows BitLocker CVE-2022-29127 BitLocker 보안 기능 우회 취약성 Microsoft Edge (Chromium-d) CVE-2022-1096 Chromium: CVE-2022-1096 V8에서 유형 혼란(Type Confusion) Microsoft Office Excel CVE-2022-29109 Microsoft Excel 원격 코드 실행 취약성 Microsoft Office Excel CVE-2022-29110 Microsoft Excel 원격 코드 실행 취약성 Microsoft Exchange Server CVE-2022-21978 Microsoft Exchange Server 권한 상승 취약성 Microso

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
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. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 10 May 2022 · Last source change 27 May 2026, 13:36 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-7011
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 ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

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-2022-7011↗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-2022-23267 · cve.blacktree.nl