VulnerabilityModified
CVE-2021-28450
Microsoft SharePoint Denial of Service Vulnerability
MEDIUM 5.0EPSS 2.40%
Does this matter?
Lower severity and a low EPSS score (2.40%). Track it; it rarely justifies an emergency change on its own.
Description
Microsoft SharePoint Denial of Service Vulnerability
- CVSS 3.1
- 5.0 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
- EPSS
- 2.40% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- microsoft/sharepoint foundation · microsoft/sharepoint server
- Source
- secure@microsoft.com
EPSS 2.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28450Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28450Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.