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    CVE-2021-40486

    Microsoft Word Remote Code Execution Vulnerability

    Published:Oct 13, 2021
    Last Modified:Nov 21, 2024
    EPS:Oct 13, 2021
    EPSS Score:0.03164
    CVSS Score:7.8

    Affected Products

    Vendor
    Microsoft
    Product
    Office
    Vendor
    Microsoft
    Product
    Office Online Server
    Vendor
    Microsoft
    Product
    Office Web Apps Server
    Vendor
    Microsoft
    Product
    Sharepoint Enterprise Server
    Vendor
    Microsoft
    Product
    Sharepoint Server
    Vendor
    Microsoft
    Product
    Word

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-45460 (CVSS 4.7) — Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.…
    CVE-2026-45474 (CVSS 8.4) — Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.…
    CVE-2026-45472 (CVSS 8.4) — Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.…
    CVE-2026-42832 (CVSS 7.7) — Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.…
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    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