CVE-2026-42836
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 < 10.0.14393.9234 | affected |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 < 10.0.17763.8880 | affected |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 < 10.0.19044.7417 | affected |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 < 10.0.19045.7417 | affected |
| Microsoft | Windows 11 version 23H2 | 10.0.22631.0 < 10.0.22631.7219 | affected |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 < 10.0.22631.7219 | affected |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 < 10.0.26100.8655 | affected |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 < 10.0.26200.8655 | affected |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 < 10.0.28000.2269 | affected |
| Microsoft | Windows Server 2012 | 6.2.9200.0 < 6.2.9200.26132 | affected |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 < 6.2.9200.26132 | affected |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 < 6.3.9600.23228 | affected |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 < 6.3.9600.23228 | affected |
| Microsoft | Windows Server 2016 | 10.0.14393.0 < 10.0.14393.9234 | affected |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 < 10.0.14393.9234 | affected |
| Microsoft | Windows Server 2019 | 10.0.17763.0 < 10.0.17763.8880 | affected |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 < 10.0.17763.8880 | affected |
| Microsoft | Windows Server 2022 | 10.0.20348.0 < 10.0.20348.5256 | affected |
| Microsoft | Windows Server 2025 | 10.0.26100.0 < 10.0.26100.32995 | affected |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 < 10.0.26100.32995 | affected |
Weaknesses
- CWE-362: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
- CWE-416: CWE-416: Use After Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
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