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Full vulnerability report · 2026
CVE-2026-41101High confidence

Microsoft Word for Android Spoofing Vulnerability

Microsoft · Microsoft Word for Android

7.1HighCVSS 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:Medium, lowered one band.downgradedsince 10 Aug 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.31% 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 Microsoft Word for Android 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-2026-29687

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

Improper access control in Microsoft Office Word allows an authorized attacker to perform spoofing locally.

What

Improper access control in Microsoft Office Word allows an authorized attacker to perform spoofing locally.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Improper access control in Microsoft Office Word allows an authorized attacker to perform spoofing locally.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through local access 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
local access → Improper Access Control → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
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: a standard category for the underlying weakness.
CWE-284 ↗

CWE-284: Improper Access Control. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.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.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-284
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-1484Microsoft Word für Android und 365 Copilot: Mehrere Schwachstellen ermöglichen Darstellen falscher Informationen

Ein Angreifer kann mehrere Schwachstellen in Microsoft Word für Android und Microsoft 365 Copilot ausnutzen, um falsche Informationen darzustellen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0584Multiples vulnérabilités dans Microsoft Office

Bulletin de sécurité Microsoft Office CVE-2026-40363 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-40364 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-40366 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-40367 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-40418 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-40419 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-40420 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-40421 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-41100 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-41101 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-41102 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-42831 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-42832 du 12 mai 2026 Bulletin de sécurité Microsoft Office CVE-2026-42893 du 12 mai 2026 Une gestion de version détaillée se trouve à la fin de ce document. Risques Atteinte à l'intégrité des données Atteinte à la confidentialité des données Contournement de la politique de sécurité Exécution de code arbitraire à distance Élévation de privilèges Systèmes affectés Microsoft 365 Apps pour Enterprise pour systèmes 32 bits Microsoft 365 Apps pour Ente

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-015928マイクロソフトのMicrosoft Wordにおけるアクセス制御に関する脆弱性

Microsoft Office Wordの不適切なアクセス制御により、認可された攻撃者がローカル環境でなりすましを行うことが可能です。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6788MS 5월 보안 위협에 따른 정기 보안 업데이트 권고

f Privilege Vulnerability | | Windows Netlogon | CVE-2026-41089 | Windows Netlogon Remote Code Execution Vulnerability | | Microsoft Data Formulator | CVE-2026-41094 | Microsoft Data Formulator Remote Code Execution Vulnerability | | Windows 예상 파일 시스템 | CVE-2026-41095 | Windows Projected File System Elevation of Privilege Vulnerability | | Microsoft Windows DNS | CVE-2026-41096 | Microsoft Windows DNS Remote Code Execution Vulnerability | | Windows 보안 부팅 | CVE-2026-41097 | Windows Secure Boot Security Feature Bypass Vulnerability | | M365 Copilot | CVE-2026-41100 | M365 Copilot Information Disclosure Vulnerability | | Microsoft Office Word | CVE-2026-41101 | Microsoft Office Word Remote Code Execution Vulnerability | | Microsoft Office PowerPoint | CVE-2026-41102 | Microsoft Office PowerPoint Remote Code Execution Vulnerability | | Jira 및 Confluence용 Microsoft SSO 플러그인 | CVE-2026-41103 | Microsoft SSO Plugin for Jira and Confluence Elevation of Privilege Vulnerability | | Azure 알림 서비스 | CVE-2026-41105 | Azure Notification Service Elevation of Privilege Vulnerability | | Microsoft Edge(Chromium 기반) | CVE-2026-41107 | Microsoft Edge (Chromium-based) Spoofing Vulnerability | | GitHub Copilot 및 Visual Studio | CVE-2026-41109 | GitHub Copilot and Visual Studio Remote Code Execution Vulnerability |

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
Microsoft Word for Android: 16.0.0.0 < 16.0.19822.20190
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 12 May 2026 · Last source change 10 Aug 2026, 15:13 UTC · CWE-284 · Improper Access Control

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-2026-29687
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

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
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-2026-41101 · cve.blacktree.nl