CVE intelligence

CVE-2026-69382

Vulnerability intelligence

Published Sep 8, 2026Sources checked Oct 28, 2026

5.9MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-69382 and is rated Medium severity with a CVSS score of 5.9. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Sep 8, 2026

Vendor remediation details

Install KB5121609. Install KB5121610. Install KB5121611. Install KB5121608.

Vendor-listed releases

15.02.1748.051
15.02.1544.046
15.01.2507.073
15.02.2562.049

CISA KEVNot listedBased on the latest collected catalog

EPSS0.5%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is 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.

Source: NVD