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    CVE-2025-21399

    Microsoft Edge (Chromium-based) Update Elevation of Privilege Vulnerability

    Published:Jan 17, 2025
    Last Modified:Feb 13, 2026
    EPS:Jan 17, 2025
    EPSS Score:0.00322
    CVSS Score:7.4

    Affected Products

    Vendor
    Microsoft
    Product
    Edge
    Vendor
    Microsoft
    Product
    Edge Update
    Vendor
    Microsoft
    Product
    Edge Update Setup

    Exploits

    https://www.vicarius.io/vsociety/posts/elevation-of-privilege-vulnerability-in-microsoft-edge-chromium-based-detection-scripthttps://www.vicarius.io/vsociety/posts/elevation-of-privilege-vulnerability-in-microsoft-edge-chromium-based-mitigation-script

    Common Weakness Enumeration

    CWE-426 Untrusted Search Path

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-38 Leveraging/Manipulating Configuration File Search Paths

    Related CVEs

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    CVE-2026-58616 (CVSS 4.4) — Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (M…
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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