Adjacent-network privilege escalation
Published Oct 13, 2021 · Updated Aug 4, 2024
Privilege escalation in Microsoft Windows Nearby Sharing allows adjacent remote authenticated users to gain elevated privileges. Microsoft has not published the affected code path or the operation that mishandles untrusted nearby-sharing input. Exploitation requires low privileges and adjacent-network access, and successful use grants elevated authority on the affected host.
Summary
What happened
Privilege escalation in Microsoft Windows Nearby Sharing allows adjacent remote authenticated users to gain elevated privileges. Microsoft has not published the affected code path or the operation that mishandles untrusted nearby-sharing input. Exploitation requires low privileges and adjacent-network access, and successful use grants elevated authority on the affected host.
The record
- CVE
- CVE-2021-40464
- Published
- Oct 13, 2021
- Updated
- Aug 4, 2024
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-269, T1068
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 13, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record 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=10.0.0 <10.0.17763.2237
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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