CVE-2026-69781
mediumMissing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over an adjacent network.
Vendor / product: Microsoft — windows 11 24h2
Missing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over an adjacent network.
CVSS
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (secure@microsoft.com)
Timeline (UTC)
Published: 2026-09-08 18:19
Modified: 2026-09-10 17:49
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 06:51 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
microsoft / windows_11_24h2 <10.0.26100.9445
microsoft / windows_11_25h2 <10.0.26200.9445
microsoft / windows_11_26h1 <10.0.28000.2954
microsoft / windows_server_2025 <10.0.26100.33438
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69781
Patch / mitigation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69781
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69781 secure@microsoft.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:51 UTC · record ↗