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    CVE-2026-45504

    Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

    Published:Jun 9, 2026
    Last Modified:Jun 15, 2026
    EPS:Jun 9, 2026
    EPSS Score:0.00402
    CVSS Score:8.8

    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

    https://github.com/hawktrace/CVE-2026-45504

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

    CVE-2026-62911 (CVSS 8) — Authentication bypass by capture-replay in Microsoft Exchange Server allows an authorized attacker to elevate …
    CVE-2026-65813 (CVSS 6.5) — Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privi…
    CVE-2026-62915 (CVSS 6.5) — Missing authorization in Microsoft Exchange Server allows an authorized attacker to bypass a security feature …
    CVE-2026-62914 (CVSS 7.3) — Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Ser…
    CVE-2026-62913 (CVSS 8.8) — Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a n…
    CVE-2026-62912 (CVSS 6.5) — Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service o…
    CVE-2026-62910 (CVSS 7.2) — Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authori…
    CVE-2026-47631 (CVSS 8.1) — Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Ser…
    CVE-2026-45503 (CVSS 8.1) — Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over…
    CVE-2026-45502 (CVSS 5) — Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose info…

    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