CVE-2025-49737
highpriority · track · 0EPSS 0.002 · 11 %ileDEEUNLRUUSEPSS · scored 2026-10-27
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Teams allows an authorized attacker to elevate privileges locally.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedMicrosoft Teams for Mac, New Editionmsrc_csaf
25163.3001.3726.6503:Security Update:https://learn.microsoft.com/en-us/officeupdates/teams-app-versioning
https://learn.microsoft.com/en-us/officeupdates/teams-app-versioning
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (46)
Products and version ranges known to be affected.
- Microsoft SharePoint Enterprise Server 2016all versionscert_bundDEcpe:/a:microsoft:sharepoint:enterprise_server_2016
- Microsoft SharePoint Server Subscription Editionall versionscert_bundDEcpe:/a:microsoft:sharepoint:server_subscription_edition
advisories (3)
Vendor and ecosystem advisories describing this.
- NCSC-2025-0215Kwetsbaarheden verholpen in Microsoft OfficeNL2025-07-08csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in diverse Office producten.
- WID-SEC-W-2025-1491Microsoft Office: Mehrere SchwachstellenDeutsch2025-07-08csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer oder ein lokaler Angreifer kann mehrere Schwachstellen in Microsoft Excel 2016, Microsoft PowerPoint 2016, Microsoft Word 2016, Microsoft Office 2016, Microsoft Outlook 2016, Microsoft Office Online Server, Microsoft SharePoint, Microsoft Office 2019, Microsoft SharePoint Server 2019, Microsoft 365 Apps, Microsoft Teams und Microsoft Office ausnutzen, um Administratorrechte zu erlangen, um beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen und Spoofing-Angriffe durchzuführen.
- msrc_CVE-2025-49737Microsoft Teams Elevation of Privilege Vulnerability2025-07-08csaf · 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.
references (4)
External citations — patches, advisories, analysis.
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49737cnnvd
- https://vigilance.fr/vulnerability/Microsoft-Teams-vulnerabilities-of-July-2025-47656cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49737enisa_euvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49737Vendor Advisorynvd
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