CVE-2021-27076: microsoft business_productivity_servers
CVSS: 8.8v3.1HighModified
Published 11-03-2021Last modified 19-08-2026
Vulnerability summary
CVE-2021-27076 is a high (CVSS 8.8) vulnerability in microsoft business_productivity_servers. EPSS estimates a 15.17% chance of exploitation in the next 30 days, higher than 96.7% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
15.17%
0%100%
Medium · +0.74 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 Remote Code Execution Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Medium 6.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
15.17%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
+0.74 pp
From 14.43% on 19-09-2026
19-09-202619-10-2026
EPSS score15.17%
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
Microsoft7 products
- business_productivity_servers2010:sp2
- microsoft business productivity servers 2010 service pack 2≥ 13.0.0.0, < 14.0.7267.5000
- 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
1 vendor · 7 products
References
3 links
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27076X Refsource MISCX TransferredPatchVendor Advisory