Multiple vulnerabilities in Microsoft Teams



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2025-49731
CVE-2025-49737
CWE-ID CWE-264
CWE-362
Exploitation vector Network
Public exploit N/A
Vulnerable software
Microsoft Teams for Desktop
Mobile applications / Apps for mobile phones

Microsoft Teams for iOS
Mobile applications / Apps for mobile phones

Microsoft Teams for Android
Mobile applications / Apps for mobile phones

Microsoft Teams for Mac
Mobile applications / Apps for mobile phones

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU112615

Risk: Low

CVSSv4.0: 0.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-49731

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in Microsoft Teams, which leads to security restrictions bypass and privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Teams for Desktop: before 25060212643 25060212643

Microsoft Teams for iOS: before 7.10.1 100772025102901

Microsoft Teams for Android: before 1.0.0.2025112902 1.0.0.2025112902

CPE2.3 External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49731


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to perform certain actions on the device.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Race condition

EUVDB-ID: #VU112626

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-49737

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in Microsoft Teams. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Teams for Mac: before 25163.3001.3726.6503 25163.3001.3726.6503

CPE2.3 External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49737


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to perform certain actions on the device.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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