What is CVE-2026-69382?

CVE-2026-69382 is a medium-severity vulnerability in Microsoft Exchange Server, 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.

Vulnerability in Microsoft Exchange Server

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)

Published 2026-09-08 · last modified 2026-09-29.

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.

EPSS exploit prediction

EPSS: 0.005 (39.8th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: -0.000

Affected products

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

References

Microsoft Exchange Server Information Disclosure Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-69382?: CVE-2026-69382 is a medium-severity vulnerability in Microsoft Exchange Server, 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.