Vulnerability in Microsoft Exchange Server 2016 Cumulative Update 23

CVE-2026-69382

Use of a broken or risky cryptographic algorithm in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.

Vulnerability class: POODLE (CVE-2014-3566)

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-69382?
CVE-2026-69382 is a medium-severity vulnerability in Microsoft Exchange Server 2016 Cumulative Update 23, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 5.9/10. Published 2026-09-08.
How severe is CVE-2026-69382?
Medium severity. CVSS v3 base score is 5.9 out of 10.