Unauthenticated denial of service via out-of-bounds read
Published Oct 13, 2026 · Updated Oct 13, 2026
An out-of-bounds read in Microsoft Windows Wi-Fi Driver allows attackers to interrupt service over an adjacent network. Microsoft identifies the driver but does not disclose the affected function, triggering input, or whether the interruption is a hang, crash, or reboot. Exploitation requires network adjacency but no authentication or user interaction; the published impact is limited to service availability.
Summary
What happened
An out-of-bounds read in Microsoft Windows Wi-Fi Driver allows attackers to interrupt service over an adjacent network. Microsoft identifies the driver but does not disclose the affected function, triggering input, or whether the interruption is a hang, crash, or reboot. Exploitation requires network adjacency but no authentication or user interaction; the published impact is limited to service availability.
The record
- CVE
- CVE-2026-83703
- Published
- Oct 13, 2026
- Updated
- Oct 13, 2026
- Vendor
- Microsoft Corporation
- Product
- Windows Server 2019
- Classifications
- CWE-125, T1499
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 13, 2026CVE publishedPublication date reported by the CVE source.
- Oct 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.17763.0 <10.0.17763.9376
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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