Authenticated remote code execution
Published Jun 8, 2021 · Updated Aug 3, 2024
Remote code execution in affected Microsoft SharePoint 2013, 2016, and 2019 products allows remote authenticated users to execute code. Microsoft has not published the vulnerable component, request field, or code path that mishandles attacker-controlled input. Exploitation requires authenticated network access and high-complexity conditions; successful attacks can compromise confidentiality and integrity and partially interrupt service.
Summary
What happened
Remote code execution in affected Microsoft SharePoint 2013, 2016, and 2019 products allows remote authenticated users to execute code. Microsoft has not published the vulnerable component, request field, or code path that mishandles attacker-controlled input. Exploitation requires authenticated network access and high-complexity conditions; successful attacks can compromise confidentiality and integrity and partially interrupt service.
The record
- CVE
- CVE-2021-31963
- Published
- Jun 8, 2021
- Updated
- Aug 3, 2024
- Vendor
- Microsoft
- Product
- Microsoft SharePoint Foundation 2013
- Classifications
- T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 8, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=15.0.0 <15.0.5353.1000
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
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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