CVE-2026-45504 | BDVDB-2026-339121 Detail

MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 23

Description#

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

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

No public exploit known

8.8 High

1.3%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 71.3.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Server-Side Request Forgery

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

8.8 High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).