CVE-2026-61366
HIGHCVSS 7/10
Last modified
CVE-2026-61366 is a high-severity vulnerability rated 7/10 on the CVSS scale. Double free in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally..
Description
Double free in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1607 | >= 10.0.14393.0, < 10.0.14393.9418 |
| Microsoft | Windows 10 Version 1809 | >= 10.0.17763.0, < 10.0.17763.9115 |
| Microsoft | Windows 10 Version 21H2 | >= 10.0.19044.0, < 10.0.19044.7663 |
| Microsoft | Windows 10 Version 22H2 | >= 10.0.19045.0, < 10.0.19045.7663 |
| Microsoft | Windows 11 version 23H2 | >= 10.0.22631.0, < 10.0.22631.7517 |
| Microsoft | Windows 11 Version 23H2 | >= 10.0.22631.0, < 10.0.22631.7517 |
| Microsoft | Windows 11 Version 24H2 | >= 10.0.26100.0, < 10.0.26100.9168 |
| Microsoft | Windows 11 Version 25H2 | >= 10.0.26200.0, < 10.0.26200.9168 |
| Microsoft | Windows 11 version 26H1 | >= 10.0.28000.0, < 10.0.28000.2704 |
| Microsoft | Windows Server 2012 | >= 6.2.9200.0, < 6.2.9200.26280 |
| Microsoft | Windows Server 2012 (Server Core installation) | >= 6.2.9200.0, < 6.2.9200.26280 |
| Microsoft | Windows Server 2012 R2 | >= 6.3.9600.0, < 6.3.9600.23338 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | >= 6.3.9600.0, < 6.3.9600.23338 |
| Microsoft | Windows Server 2016 | >= 10.0.14393.0, < 10.0.14393.9418 |
| Microsoft | Windows Server 2016 (Server Core installation) | >= 10.0.14393.0, < 10.0.14393.9418 |
| Microsoft | Windows Server 2019 | >= 10.0.17763.0, < 10.0.17763.9115 |
| Microsoft | Windows Server 2019 (Server Core installation) | >= 10.0.17763.0, < 10.0.17763.9115 |
| Microsoft | Windows Server 2022 | >= 10.0.20348.0, < 10.0.20348.5499 |
| Microsoft | Windows Server 2025 | >= 10.0.26100.0, < 10.0.26100.33296 |
| Microsoft | Windows Server 2025 (Server Core installation) | >= 10.0.26100.0, < 10.0.26100.33296 |
References
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
Frequently Asked Questions
What is CVE-2026-61366?
Double free in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-61366?
CVE-2026-61366 has a CVSS score of 7/10 (HIGH severity).
How do I fix CVE-2026-61366?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-6136A security vulnerability has been detected in Tenda F451 1.0…8.8
- CVE-2026-61360Untrusted pointer dereference in Windows GDI allows an autho…5.5
- CVE-2026-61361Use after free in Windows DHCP Client allows an authorized a…7
- CVE-2026-61363Heap-based buffer overflow in Remote Desktop Client allows a…7.5
- CVE-2026-61364Missing authentication for critical function in Windows Remo…7.8
- CVE-2026-61365Missing authentication for critical function in Windows Remo…7.8
- CVE-2026-61367Missing authentication for critical function in Windows Remo…7.8
- CVE-2026-61368Heap-based buffer overflow in Windows Hyper-V allows an auth…5
- CVE-2026-6137A vulnerability was detected in Tenda F451 1.0.0.7_cn_svn795…8.8
- CVE-2026-61371Microsoft AVML before 0.17.0 could follow a symlink when ope…7.5
- CVE-2026-61372Improper Limitation of a Pathname to a Restricted Directory …7.5
- CVE-2026-61376ELECOM wireless LAN routers and access points devices contai…8.6
Are you affected by CVE-2026-61366?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST