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CVE-2021-28474
Microsoft SharePoint Server Remote Code Execution Vulnerability
High8.8EPSS 50.8%
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
Microsoft SharePoint Server Remote Code Execution Vulnerability
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 50.8% · top 1.1% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
- Remote Code Execution
- CWE-436 (opens in a new tab)All about CWE-436 and its CVEs
Affected products
Microsoft · Microsoft SharePoint Enterprise Server 2016
- affected 16.0.0 – < 16.0.5161.1000
Microsoft · Microsoft SharePoint Server 2019
- affected 16.0.0 – < 16.0.10374.20000
Microsoft · Microsoft SharePoint Foundation 2013 Service Pack 1
- affected 15.0.0 – < 15.0.5345.1000
References (2)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28474 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.zerodayinitiative.com/advisories/ZDI-21-574/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-28474)Record last updated .