VulnerabilityModified
CVE-2021-26420
Microsoft SharePoint Server Remote Code Execution Vulnerability
HIGH 7.1EPSS 2.96%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Microsoft SharePoint Server Remote Code Execution Vulnerability
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
- EPSS
- 2.96% probability · 86th percentile
- CISA KEV
- Not listed
- Affected
- microsoft/sharepoint enterprise server · microsoft/sharepoint foundation · microsoft/sharepoint server
- Source
- secure@microsoft.com
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26420Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-755/Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26420Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-755/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.