CVE-2026-65786
HIGHCVSS 7.8/10
Last modified
CVE-2026-65786 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally..
Description
Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
Metrics
CVSS:3.1/AV:L/AC:L/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 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
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-65786?
Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-65786?
CVE-2026-65786 has a CVSS score of 7.8/10 (HIGH severity).
How do I fix CVE-2026-65786?
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-2026-65780Double free in Windows Autopilot allows an authorized attack…7
- CVE-2026-65781Use after free in Windows Autopilot allows an authorized att…7
- CVE-2026-65782Use after free in Windows Autopilot allows an authorized att…7
- CVE-2026-65783Use after free in Windows Autopilot allows an authorized att…7
- CVE-2026-65784Out-of-bounds read in Windows NTFS allows an authorized atta…5.5
- CVE-2026-65785Uncontrolled resource consumption in Windows DHCP Client all…6.5
- CVE-2026-65787Heap-based buffer overflow in Desktop Window Manager allows …7.8
- CVE-2026-65788Use after free in Desktop Window Manager allows an authorize…7
- CVE-2026-65789Use after free in Windows DNS allows an unauthorized attacke…8.1
- CVE-2026-6579A weakness has been identified in liangliangyy DjangoBlog up…6.5
- CVE-2026-65790Heap-based buffer overflow in Windows Message Queuing allows…7.8
- CVE-2026-65791Heap-based buffer overflow in Windows iSCSI Target Service a…9.8
Are you affected by CVE-2026-65786?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST