CVE-2021-34519: microsoft microsoft sharepoint enterprise server 2013 service pack 1
CVSS: 5.3v3.1MediumModified
Published 14-07-2021Last modified 10-08-2026
Vulnerability summary
CVE-2021-34519 is a medium (CVSS 5.3) vulnerability in microsoft microsoft sharepoint enterprise server 2013 service pack 1. EPSS estimates a 6.14% chance of exploitation in the next 30 days, higher than 93.3% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
6.14%
0%100%
Low · +0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 14-07-2021PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
Description
Microsoft SharePoint Server Information Disclosure Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:CSourcesAll 2 agree
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Low 2.3Preferred score · NVD (NIST)
AV:A/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
6.14%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
+0.05 pp
From 6.09% on 19-09-2026
19-09-202619-10-2026
EPSS score6.14%
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
Microsoft5 products
- microsoft sharepoint enterprise server 2013 service pack 1≥ 15.0.0, < 15.0.5363.1000
- microsoft sharepoint enterprise server 2016≥ 16.0.0, < 16.0.5188.1000
- microsoft sharepoint foundation 2013 service pack 1≥ 15.0.0, < 15.0.5363.1000
- sharepoint_foundation2013:sp1
- sharepoint_server2013:sp1 | 2016
1 vendor · 5 products
References
3 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34519X Refsource MISCX TransferredPatchVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-21-830/X Refsource MISCX TransferredThird Party AdvisoryVDB Entry