CVE-2026-69405CWE-401

CVE-2026-69405

Medium · published September 8, 2026

CVSS v3.1
5.7
EPSS
1%
Percentile
50.3
In the wild
Unconfirmed
What it is

Missing release of memory after effective lifetime in Windows DHCP Server allows an authorized attacker to deny service over an adjacent network.

The record
Technical detail
CVSS v3.1
5.7 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00646 · 50.3th percentile
Weakness
CWE-401 · Missing Release of Memory after Effective Lifetime
Published
2026-09-08T22:19Z
Affected products (10)
ProductVersionsFixed in
microsoft/windows_10_1607< 10.0.14393.951210.0.14393.9512
microsoft/windows_10_1607< 10.0.14393.951210.0.14393.9512
microsoft/windows_10_1809< 10.0.17763.924510.0.17763.9245
microsoft/windows_10_1809< 10.0.17763.924510.0.17763.9245
microsoft/windows_server_2012all versions—
microsoft/windows_server_2012all versions—
microsoft/windows_server_2016< 10.0.14393.951210.0.14393.9512
microsoft/windows_server_2019< 10.0.17763.924510.0.17763.9245
microsoft/windows_server_2022< 10.0.20348.562210.0.20348.5622
microsoft/windows_server_2025< 10.0.26100.3343810.0.26100.33438
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69405 · [email protected]
EPSS history
Timeline
  • 10 SEP 03:17Z
    EPSS moved — → 1%
    epss
  • 08 SEP 17:15Z
    Windows DHCP Server Denial of Service Vulnerability
    cvelistv5