CVE-2025-53783

highpriority · track · 10EPSS 0.008 · 57 %ileexploit · PoCDEEUNLRUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.81% (57th) EPSS

CVSS 7.5 · high

Is it mine?

80 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMicrosoft Teams for Androidmsrc_csaf
1416/1.0.0.2025102802:Security Update:https://play.google.com/store/apps/details?id=com.microsoft.teams
https://play.google.com/store/apps/details?id=com.microsoft.teams
FixedMicrosoft Teams for Desktopmsrc_csaf
25122.1415.3698.6812:Security Update:https://docs.microsoft.com/en-us/microsoftteams/teams-client-update
https://docs.microsoft.com/en-us/microsoftteams/teams-client-update
FixedMicrosoft Teams for Mac, New Editionmsrc_csaf
25122.1207.3700.1444:Security Update:https://learn.microsoft.com/en-us/officeupdates/teams-app-versioning
https://learn.microsoft.com/en-us/officeupdates/teams-app-versioning
FixedMicrosoft Teams for iOSmsrc_csaf
7.10.1 (100772025102901):Security Update:https://apps.apple.com/us/app/microsoft-teams/id1113153706
https://apps.apple.com/us/app/microsoft-teams/id1113153706
FixedTeams Panelsmsrc_csaf
1449/1.0.97.2025102203:Security Update:https://learn.microsoft.com/en-us/microsoftteams/devices/devices-release-notes?tabs=panels#tabpanel_1_panels
https://learn.microsoft.com/en-us/microsoftteams/devices/devices-release-notes?tabs=panels#tabpanel_1_panels
FixedTeams Phonesmsrc_csaf
1449/1.0.94.2025168802:Security Update:https://learn.microsoft.com/en-us/microsoftteams/devices/devices-release-notes?tabs=phones#tabpanel_1_panels
https://learn.microsoft.com/en-us/microsoftteams/devices/devices-release-notes?tabs=phones#tabpanel_1_panels
FixedTeams for D365 Guides Hololensmsrc_csaf
907.2505.29001.0:Security Update:https://learn.microsoft.com/en-us/dynamics365/mixed-reality/guides/new#june-10-2025
https://learn.microsoft.com/en-us/dynamics365/mixed-reality/guides/new#june-10-2025
FixedTeams for D365 Remote Assist HoloLensmsrc_csaf
316.2505.28001:Security Update:https://learn.microsoft.com/en-us/dynamics365/mixed-reality/remote-assist/whats-new#june-10-2025
https://learn.microsoft.com/en-us/dynamics365/mixed-reality/remote-assist/whats-new#june-10-2025

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.5highAV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 1.6 · impact 5.9

v3.17.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USCWE-122USCWE-122USCWE-122US

exploits (1)

Public proof-of-concept and weaponised exploit code.

ksgassama-lab/MSTeams---Vulnerability---RemediationAutomated remediation of CVE-2025-53783 (Teams RCE) using PowerShellPoC · poc_in_github

affected products (80)

Products and version ranges known to be affected.

Microsoft 365 Appsall versionscert_bundDEcpe:/a:microsoft:365_apps:-
Microsoft Excel 2016all versionscert_bundDEcpe:/a:microsoft:excel_2016:-
Microsoft Office 2016all versionscert_bundDEcpe:/a:microsoft:office_2016:-
Microsoft Office 2019all versionscert_bundDEcpe:/a:microsoft:office_2019:-
Microsoft Office LTSC 2021all versionscert_bundDEcpe:/a:microsoft:office:ltsc_2021
Microsoft Office LTSC 2024all versionscert_bundDEcpe:/a:microsoft:office:ltsc_2024
Microsoft Office LTSC for Mac 2021all versionscert_bundDEcpe:/a:microsoft:office:ltsc_for_mac_2021
Microsoft Office LTSC for Mac 2024all versionscert_bundDEcpe:/a:microsoft:office:ltsc_for_mac_2024
Microsoft Office Online Serverall versionscert_bundDEcpe:/a:microsoft:office_online_server:-
Microsoft Office for Androidall versionscert_bundDEcpe:/a:microsoft:office:for_android
Microsoft Office for Universalall versionscert_bundDEcpe:/a:microsoft:office:for_universal
Microsoft PowerPoint 2016all versionscert_bundDEcpe:/a:microsoft:powerpoint_2016:-
Microsoft SharePoint Enterprise Server 2016all versionscert_bundDEcpe:/a:microsoft:sharepoint:enterprise_server_2016
Microsoft SharePoint Server 2019all versionscert_bundDEcpe:/a:microsoft:sharepoint_server_2019:-
Microsoft SharePoint Server Subscription Editionall versionscert_bundDEcpe:/a:microsoft:sharepoint:server_subscription_edition
Microsoft Teams Panelsall versionscert_bundDEcpe:/a:microsoft:teams:panels
Microsoft Teams Phonesall versionscert_bundDEcpe:/a:microsoft:teams:phones
Microsoft Teams for Androidall versionscert_bundDEcpe:/a:microsoft:teams:for_android
Microsoft Teams for D365 Guides Hololensall versionscert_bundDEcpe:/a:microsoft:teams:for_d365_guides_hololens
Microsoft Teams for D365 Remote Assist HoloLensall versionscert_bundDEcpe:/a:microsoft:teams:for_d365_remote_assist_hololens

showing 20 of 80

advisories (4)

Vendor and ecosystem advisories describing this.

NCSC-2025-0250Kwetsbaarheden verholpen in Microsoft OfficeNL2025-08-13csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Microsoft Office (inclusief SharePoint, Visio, Word, Excel en PowerPoint).
WID-SEC-W-2025-1773Microsoft Teams Geräte: Schwachstelle ermöglicht CodeausführungDeutsch2025-08-12csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Microsoft Teams Geräten ausnutzen, um beliebigen Programmcode auszuführen.
WID-SEC-W-2025-1787Microsoft Office Produkte: Mehrere SchwachstellenDeutsch2025-08-12csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in verschiedenen Microsoft Office Produkten ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, und um Informationen offenzulegen.
msrc_CVE-2025-53783Microsoft Teams Remote Code Execution Vulnerability2025-08-12csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl msrc_csaf NVD CVE.org MITRE

published 2025-08-12modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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