CVE Feed

    Dashboard / CVE / CVE-2026-21535

    CVE-2026-21535

    Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network.

    Published:Feb 19, 2026
    Last Modified:Apr 15, 2026
    EPS:Feb 19, 2026
    EPSS Score:0.00086
    CVSS Score:8.2

    Affected Products

    Vendor
    Microsoft
    Product
    Teams

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    Related CVEs

    CVE-2026-65812 (CVSS 6.8) — Insertion of sensitive information into sent data in Microsoft Teams for Android allows an authorized attacker…
    CVE-2026-69559 (CVSS 5.8) — Origin validation error in Microsoft Teams for Android allows an authorized attacker to disclose information o…
    CVE-2026-65767 (CVSS 8.8) — Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Teams for An…
    CVE-2026-65769 (CVSS 6.5) — Exposure of sensitive information to an unauthorized actor in Microsoft Teams Mobile allows an unauthorized at…
    CVE-2026-65768 (CVSS 8.8) — Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Teams for Android …
    CVE-2026-65667 (CVSS 10) — Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.…
    CVE-2026-62918 (CVSS 7.5) — Improper verification of cryptographic signature in Microsoft Teams allows an unauthorized attacker to perform…
    CVE-2026-62896 (CVSS 9.6) — Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.…
    CVE-2026-42835 (CVSS 8.1) — Improper neutralization of special elements in output used by a downstream component ('injection') in Microsof…
    CVE-2026-32185 (CVSS 5.5) — Files or directories accessible to external parties in Microsoft Teams allows an unauthorized attacker to perf…

    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