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Full vulnerability report · 2026
CVE-2026-65812High confidence

Microsoft Teams for Android Information Disclosure Vulnerability

Microsoft · Microsoft Teams for Android

6.8MediumCVSS 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.

Patch available
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2026-73739

No EUVD known-exploited evidence

Insertion of sensitive information into sent data in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.

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
6.8 · CVSS 3.1
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

Insertion of sensitive information into sent data in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.

What

Insertion of sensitive information into sent data in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.

Why

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

What

Insertion of sensitive information into sent data in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.

Why

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

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 → Insertion of Sensitive Information Into Sent Data → obtain information outside the intended access boundary
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-201 ↗

CWE-201: Insertion of Sensitive Information Into Sent Data. The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

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:R/S:C/C:H/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.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major 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.
NetworkCWE-201
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-73739Official EUVD mapping

Insertion of sensitive information into sent data in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3234Microsoft Office Produkte: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in verschiedenen Microsoft Office Produkten, Microsoft Office Online Server, Microsoft 365 Apps, Microsoft SharePoint, Microsoft Teams und Microsoft Skype ausnutzen, um erhöhte Berechtigungen zu erlangen, um Code auszuführen, um Informationen offenzulegen und um den Nutzer zu täuschen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1149Multiples vulnérabilités dans les produits Microsoft

septembre 2026 Bulletin de sécurité Microsoft CVE-2026-55007 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-57099 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-58599 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-58600 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-58611 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-58649 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-63523 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-65669 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-65772 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-65812 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-66302 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-66303 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-66304 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-66305 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-66306 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-66307 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-66308 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-66814 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-66816 du 08 septembre 2026 Bulletin de sécurité Micr

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-24Aggiornamenti Mensili Microsoft

nuova finestra - - CVE-2026-69309 : apre una nuova finestra - - CVE-2026-69303 : apre una nuova finestra - - CVE-2026-69300 : apre una nuova finestra - - CVE-2026-69301 : apre una nuova finestra - - CVE-2026-67369 : apre una nuova finestra - - CVE-2026-67368 : apre una nuova finestra - - CVE-2026-69307 : apre una nuova finestra - - CVE-2026-69304 : apre una nuova finestra - - CVE-2026-69305 : apre una nuova finestra - - CVE-2026-68891 : apre una nuova finestra - - CVE-2026-68892 : apre una nuova finestra - - CVE-2026-68890 : apre una nuova finestra - - CVE-2026-65818 : apre una nuova finestra - - CVE-2026-58600 : apre una nuova finestra - - CVE-2026-65812 : apre una nuova finestra - - CVE-2026-68884 : apre una nuova finestra - - CVE-2026-68885 : apre una nuova finestra - - CVE-2026-68888 : apre una nuova finestra - - CVE-2026-68889 : apre una nuova finestra - - CVE-2026-68886 : apre una nuova finestra - - CVE-2026-68887 : apre una nuova finestra - - CVE-2026-69294 : apre una nuova finestra - - CVE-2026-69295 : apre una nuova finestra - - CVE-2026-69292 : apre una nuova finestra - - CVE-2026-69293 : apre una nuova finestra - - CVE-2026-68880 : apre una nuova finestra - - CVE-2026-69298 : apre una nuova finestra - - CVE-2026-68881 : apre una nuova finestra - - CVE-2026-69299 : apre una nuova fi

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6946MS 9월 보안 위협에 따른 정기 보안 업데이트 권고

| | Active Directory Domain Services | CVE-2026-62813 | Windows Active Directory 도메인 서비스 원격 코드 실행 취약성 | | Azure Arc | CVE-2026-62895 | Azure Arc SQL Server Extension 권한 상승 취약성 | | Microsoft Discovery Studio | CVE-2026-62906 | Microsoft Discovery Studio 정보 유출 취약성 | | Microsoft Entra ID | CVE-2026-62916 | Microsoft Entra ID 권한 상승 취약성 | | Skype for Business | CVE-2026-63523 | 비즈니스용 Skype 스푸핑 취약성 | | Microsoft Office | CVE-2026-64918 | Microsoft Office 스푸핑 취약성 | | SQL Server | CVE-2026-65669 | Microsoft SQL Server 권한 상승 취약성 | | Microsoft Dynamics 365 | CVE-2026-65772 | Microsoft Dynamics 365 온-프레미스 원격 코드 실행 취약성 | | Microsoft Teams for Android | CVE-2026-65812 | Android용 Microsoft Teams 정보 공개 취약성 | | Power Automate | CVE-2026-65818 | Power Automate 권한 상승 취약성 | | Skype for Business | CVE-2026-66302 | 비즈니스용 Skype 원격 코드 실행 취약성 | | Skype for Business | CVE-2026-66303 | 비즈니스용 Skype 및 Lync 서비스 거부 취약성 | | Skype for Business | CVE-2026-66304 | 비즈니스용 Skype 정보 유출 취약성 | | Skype for Business | CVE-2026-66305 | 비즈니스용 Skype 스푸핑 취약성 | | Skype for Business | CVE-2026-66306 | 비즈니스용 Skype 정보 유출 취약성 | | Skype for Business | CVE-2026-66307 | 비즈니스용 Skype 및 Lync 서비스 거부 취약성 | | Skype for Business | CVE-2026-66308 | 비즈니스용 Skype 및 Lync 서비스 거부 취약성 | | SQL Server | CVE-2026-66814 | Microsoft SQL Server 권한 상승 취약성 | | SQL Ser

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 Teams for Android: 1.0.0 < 1416/1.0.0.2026133602
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 8 Sept 2026 · Last source change 11 Sept 2026, 22:16 UTC · CWE-201 · Insertion of Sensitive Information Into Sent Data

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 2026-09-09
European sourceENISA EUVD · EUVD-2026-73739
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD awaiting enrichment

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    1.0.0 < 1416/1.0.0.2026133602 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Microsoft Teams for Android: 1.0.0 < 1416/1.0.0.2026133602 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  2. ENISA EUVD mappingEUVD-2026-73739 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-73739"}
    ENISA EUVD ↗
  3. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2026-73739↗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-2026-65812 · cve.blacktree.nl