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High severity8.8NVD Advisory· Published Jun 9, 2026· Updated Jun 15, 2026

CVE-2026-45504

CVE-2026-45504

Description

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

Affected products

5
  • Microsoft/Exchange Server4 versions
    cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_23:*:*:*:*:*:*+ 3 more
    • cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_23:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_14:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_15:*:*:*:*:*:*
    • (no CPE)
  • Microsoft/Exchange Server Subscription Edition
    cpe:2.3:a:microsoft:exchange_server_subscription_edition:*:*:*:*:*:*:*:*
    Range: <15.02.2562.043

Patches

Vulnerability mechanics

References

1

News mentions

7