CVE-2021-34520

moderate-risk
Published 2021-07-14

Microsoft SharePoint Server Remote Code Execution Vulnerability

Do I need to act?

~
6.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.1/10 High
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Microsoft

References (4)

Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-3452...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-21-828/
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-3452...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-21-828/
46
/ 100
moderate-risk
Severity 28/34 · Critical
Exploitability 9/34 · Low
Exposure 9/34 · Low