High severity · published Feb 14, 2023
CVE-2023-21717
Microsoft SharePoint Server Elevation of Privilege Vulnerability
8.8
CVSS
1.1%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SH
SharePoint · Microsoft
2019 · source: NVD
SE
Sharepoint Enterprise Server · Microsoft
2013; 2016 · source: NVD
SF
Sharepoint Foundation · Microsoft
2013 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-21717
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-21717
Patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21717
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