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    CVE-2026-87695

    Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

    Published:Oct 13, 2026
    Last Modified:Oct 27, 2026
    EPS:Oct 13, 2026
    EPSS Score:0.00299
    CVSS Score:7.8

    Affected Products

    Vendor
    Microsoft
    Product
    Exchange Server
    Vendor
    Microsoft
    Product
    Exchange Server 2016
    Vendor
    Microsoft
    Product
    Exchange Server 2019
    Vendor
    Microsoft
    Product
    Exchange Server Se
    Vendor
    Microsoft
    Product
    Exchange Server Subscription Edition
    Vendor
    Microsoft
    Product
    Microsoft Exchange Server 2016 Cumulative Update 23
    Vendor
    Microsoft
    Product
    Microsoft Exchange Server 2019 Cumulative Update 14
    Vendor
    Microsoft
    Product
    Microsoft Exchange Server 2019 Cumulative Update 15
    Vendor
    Microsoft
    Product
    Microsoft Exchange Server Subscription Edition Rtm

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-87696 (CVSS 7.5) — Improper verification of cryptographic signature in Microsoft Exchange Server allows an authorized attacker to…
    CVE-2026-87692 (CVSS 7.8) — Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privil…
    CVE-2026-96940 (CVSS 8.8) — Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a ne…
    CVE-2026-69641 (CVSS 9.1) — Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a …
    CVE-2026-69382 (CVSS 5.9) — Use of a broken or risky cryptographic algorithm in Microsoft Exchange Server allows an unauthorized attacker …
    CVE-2026-69380 (CVSS 8.1) — Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a …
    CVE-2026-69378 (CVSS 7.5) — Uncontrolled recursion in Microsoft Exchange Server allows an unauthorized attacker to deny service over a net…
    CVE-2026-69375 (CVSS 6.5) — Authorization bypass through user-controlled key in Microsoft Exchange Server allows an authorized attacker to…
    CVE-2026-69361 (CVSS 6.5) — Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoof…
    CVE-2026-69356 (CVSS 9.3) — Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Ser…

    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