Authenticated spoofing through undisclosed mechanism
Published Feb 9, 2022 · Updated Jan 2, 2025
Spoofing in Microsoft SharePoint Server 2013, 2016, 2019, and Subscription Edition allows remote authenticated users to deceive viewers. Microsoft has not published the affected component or the operation that mishandles attacker-controlled input. Exploitation requires valid SharePoint credentials and voluntary interaction by a victim; the resulting content and actions remain unspecified.
Summary
What happened
Spoofing in Microsoft SharePoint Server 2013, 2016, 2019, and Subscription Edition allows remote authenticated users to deceive viewers. Microsoft has not published the affected component or the operation that mishandles attacker-controlled input. Exploitation requires valid SharePoint credentials and voluntary interaction by a victim; the resulting content and actions remain unspecified.
The record
- CVE
- CVE-2022-21987
- Published
- Feb 9, 2022
- Updated
- Jan 2, 2025
- Vendor
- Microsoft
- Product
- Microsoft SharePoint Enterprise Server 2016
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 9, 2022CVE publishedPublication date reported by the CVE source.
- Jan 2, 2025Record 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=16.0.0 <16.0.5278.1000
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
No sourced classifications are available.
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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