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Full vulnerability report · 2022
CVE-2022-21968High confidence

Microsoft SharePoint Server Security Feature Bypass Vulnerability

Microsoft · Microsoft SharePoint Enterprise Server 2016

4.3MediumCVSS 3.1
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.

Fix not verified
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 2.13% for the current model date.

Compensating controls

  • 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 Microsoft SharePoint Enterprise Server 2016 and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  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-2022-27123

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.

Fix not verified
01

What, why and how

Microsoft SharePoint Server Security Feature Bypass Vulnerability

What

Microsoft SharePoint Server Security Feature Bypass 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 with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Microsoft SharePoint Server Security Feature Bypass 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 with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

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 → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
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:L/UI:N/S:U/C:L/I:N/A:N/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.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
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.
Network
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-20220216Security Bulletin 16 Feb 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 16 Feb 2022, published on 16 February 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-129Multiples vulnérabilités dans Microsoft Office

De multiples vulnérabilités ont été corrigées dans Microsoft Office . Elles permettent à un attaquant de provoquer une usurpation d'identité, une atteinte à la confidentialité des données, un contournement de la fonctionnalité de sécurité et une exécution de code à distance.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-001373Microsoft SharePoint におけるセキュリティ機能を回避される脆弱性

Microsoft SharePoint には、セキュリティ機能を回避される脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5501MS 2월 보안 위협에 따른 정기 보안 업데이트 권고

커널 권한 상승 취약성 Microsoft Office Visio CVE-2022-21988 Microsoft Office Visio 원격 코드 실행 취약성 Microsoft Office SharePoint CVE-2022-21987 Microsoft SharePoint Server 스푸핑 취약성 Kestrel Web Server CVE-2022-21986 .NET 서비스 거부 취약성 Windows Remote Access Connection Manager CVE-2022-21985 Windows 원격 액세스 연결 관리자 정보 유출 취약성 Role: DNS Server CVE-2022-21984 Windows DNS 서버 원격 코드 실행 취약성 Windows Common Log File System Driver CVE-2022-21981 Windows 공용 로그 파일 시스템 드라이버 권한 상승 취약성 Roaming Security Rights Management Services CVE-2022-21974 로밍 보안 권리 관리 서비스 원격 코드 실행 취약성 Windows Remote Procedure Call Runtime CVE-2022-21971 Windows 작동 시간 원격 코드 실행 취약성 Microsoft Office SharePoint CVE-2022-21968 Microsoft SharePoint Server 보안 기능 우회 취약성 Microsoft Teams CVE-2022-21965 Microsoft Teams 서비스 거부 취약성 Microsoft Dynamics CVE-2022-21957 Microsoft Dynamics 365(온-프레미스) 원격 코드 실행 취약성 Microsoft Windows Codecs Library CVE-2022-21927 HEVC 비디오 확장 원격 코드 실행 취약성 Microsoft Windows Codecs Library CVE-2022-21926 HEVC 비디오 확장 원격 코드 실행 취약성 Windows Diagnostic Hub CVE-2022-21871 Microsoft 진단 허브 표준 수집기 런타임 권한 상승 취약성 Microsoft Windows Codecs Library CVE-2022-21844 HEVC 비디오 확장 원격 코드 실행 취약성 Windows Kernel CVE-2021-34500 Windows 커널 메모리 정보 유출 취약성 Microsoft Windows CVE-2019-0887 원격 데스크톱 서비스 원격 코드 실행 취약성 Servicing Stack Updates ADV990001 최신 서비스 스택 업데이트 ##### □ 작성 : 침해사고

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.
Fix not verified
Affected
  • Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5278.1000
  • Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10383.20001
  • Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.14326.20742
  • Microsoft SharePoint Foundation 2013 Service Pack 1: 15.0.0 < 15.0.5423.1000
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
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 9 Feb 2022 · Last source change 2 Jan 2025, 18:28 UTC · CWE not yet assigned

CVE recordCVE.org · 5.1
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-2022-27123
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
ENISA EUVD · EUVD-2022-27123↗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-2022-21968 · cve.blacktree.nl