CVE intelligence

CVE-2026-69803

Vulnerability intelligence

Published Sep 8, 2026Sources checked Oct 28, 2026

7.5HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-69803 and is rated High severity with a CVSS score of 7.5. 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 24, 2026

Vendor remediation details

Install KB5122876. Install KB5122882. Install KB5122871. Install KB5123099. Install KB5123065. Install KB5123066.

Vendor-listed releases

10.0.17763.9245
10.0.20348.5622
10.0.26100.33438
10.0.14393.9512
6.2.9200.26349
6.3.9600.23398

CISA KEVNot listedBased on the latest collected catalog

EPSS0.8%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-69803?

Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.

Source: NVD