CVE-2026-44805
Windows Network Controller (NC) Host Agent Denial of Service Vulnerability
Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Network Controller (NC) Host Agent Denial of Service Vulnerability
Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally.
- Record
CVE-2026-44805- CVSS 3.1
- 5.5 Medium
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 - Weakness
- CWE-416, CWE-822
- Updated
- 2026-11-11
EUVDEUVD-2026-35746
Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally.
- Record
EUVD-2026-35746- CVSS 3.1
- 5.5 Medium
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 - Updated
- 2026-11-11
GitHub AdvisoriesGHSA-hr83-xf6f-c3j7
Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to...
Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally.
- Record
GHSA-hr83-xf6f-c3j7- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
NVD
Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally.
- Record
CVE-2026-44805- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-416, CWE-822
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | EUVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-44805 is a medium vulnerability (CVSS 5.5) in Microsoft Windows Server 2019, published June 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 29th percentile. No source names a fixed version.