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    CVE-2025-53783

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

    Published:Aug 12, 2025
    Last Modified:Feb 13, 2026
    EPS:Aug 12, 2025
    EPSS Score:0.00064
    CVSS Score:7.5

    Affected Products

    Vendor
    Microsoft
    Product
    Dynamics 365 Guides
    Vendor
    Microsoft
    Product
    Dynamics 365 Remote Assist
    Vendor
    Microsoft
    Product
    Teams
    Vendor
    Microsoft
    Product
    Teams For Mac
    Vendor
    Microsoft
    Product
    Teams Panels
    Vendor
    Microsoft
    Product
    Teams Phones

    Exploits

    https://github.com/ksgassama-lab/MSTeams---Vulnerability---Remediation

    Common Weakness Enumeration

    CWE-122 Heap-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High