CVE-2026-69375 | BDVDB-2026-369359 Detail

MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 23

Description#

Authorization bypass through user-controlled key in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network.

Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact none. Attack vector: network.

No public exploit known

6.5 Medium

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 51.2.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Insecure Direct Object Reference

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

Not available

6.5 Medium

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

Not available

Not available

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