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CVE-2026-44805

MEDIUM

5.5

CVSS 3.1

Metadata

CVE ID: CVE-2026-44805
State: PUBLISHED
Assigner: microsoft
Reserved: 2026-05-07 20:07 UTC
Published: 2026-06-09 17:06 UTC
Last updated: 2026-06-10 17:55 UTC
Primary CWE: CWE-416
CWE-416: Use After Free
Vendor / Product: Microsoft / Windows Server 2019
Sources: cve.org · NVD

Severity & Metrics

5.5 MEDIUM CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (5)

Vendor	Product	Platform	Versions
Microsoft	Windows Server 2019	x64-based Systems	10.0.17763.0 < 10.0.17763.8880
Microsoft	Windows Server 2019 (Server Core installation)	x64-based Systems	10.0.17763.0 < 10.0.17763.8880
Microsoft	Windows Server 2022	x64-based Systems	10.0.20348.0 < 10.0.20348.5256
Microsoft	Windows Server 2025	x64-based Systems	10.0.26100.0 < 10.0.26100.32995
Microsoft	Windows Server 2025 (Server Core installation)	x64-based Systems	10.0.26100.0 < 10.0.26100.32995

Weakness (CWE)

CWE	Source	Description
CWE-416	cna	CWE-416: Use After Free
CWE-822	cna	CWE-822: Untrusted Pointer Dereference

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.5	MEDIUM	3.1	cna	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

References (1)

Windows Network Controller (NC) Host Agent Denial of Service Vulnerability https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44805

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