Home/CVE/Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Functio
CVE

CVE-2025-62217

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Functio

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

HIGH · CVSS 7 EPSS 0.00032
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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Affected Products & Versions

14
microsoft windows 10 1607< 10.0.14393.8594
microsoft windows 10 1809< 10.0.17763.8027
microsoft windows 10 21h2< 10.0.19044.6575
microsoft windows 10 22h2< 10.0.19045.6575
microsoft windows 11 23h2< 10.0.22631.6199
microsoft windows 11 24h2< 10.0.26100.7092
microsoft windows 11 25h2< 10.0.26200.7092
microsoft windows server 2008all versions
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Scoring & Timeline

7
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Nov 2025 · 06:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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Vendor Advisories

1
msrcCVE-2025-62217Elevation of Privilege
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