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HIGH · 7.5

CVE-2025-53783

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

Vulnerability Description

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

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftDynamics 365 Guides< 907.2505.29001.0
MicrosoftDynamics 365 Remote Assist< 316.2505.28001
MicrosoftTeams< 1.0.0.2025102802
MicrosoftTeams Panels< 1.0.97.2025102203
MicrosoftTeams Phones< 1.0.94.2025168802

Related Weaknesses (CWE)

CWE-122

References

FAQ

What is CVE-2025-53783?

CVE-2025-53783 is a vulnerability with a CVSS score of 7.5 (HIGH). Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network.

How severe is CVE-2025-53783?

CVE-2025-53783 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-53783?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Dynamics 365 Guides, Microsoft Dynamics 365 Remote Assist, Microsoft Teams, Microsoft Teams Panels, Microsoft Teams Phones.