CVE-2021-24104: microsoft microsoft sharepoint enterprise server 2016
CVSS: 5.8v2.0MediumModified
Published 11-03-2021Last modified 19-08-2026
Vulnerability summary
CVE-2021-24104 is a medium (CVSS 5.8) vulnerability in microsoft microsoft sharepoint enterprise server 2016. EPSS estimates a 1.47% chance of exploitation in the next 30 days, higher than 73.4% of scored vulnerabilities.
CVSS score
5.8/10
010
Medium · v2.0 (NVD)EPSS score
1.47%
0%100%
Low · +0.11 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-03-2021PublishedVulnerability first disclosed.
- 19-08-2026Last modifiedVulnerability information updated.
Description
Microsoft SharePoint Server Spoofing Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 4.6Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N/E:P/RL:W/RC:CSourcesAll 2 agree
- NVDNIST4.6MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Medium 5.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.47%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
+0.11 pp
From 1.37% on 20-09-2026
20-09-202620-10-2026
EPSS score1.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Microsoft6 products
- microsoft sharepoint enterprise server 2016≥ 16.0.0, < 16.0.5134.1000
- microsoft sharepoint foundation 2013 service pack 1≥ 15.0.0, < 15.0.5327.1000
- microsoft sharepoint server 2019≥ 16.0.0, < 16.0.10372.20000
- sharepoint_enterprise_server2016
- sharepoint_foundation2013:sp1
1 vendor · 6 products
References
2 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24104X Refsource MISCX TransferredPatchVendor Advisory