CVE-2021-34520 — Deserialization of Untrusted Data in Microsoft Sharepoint Enterprise Server 2016

CWE-502 — Deserialization of Untrusted Data4 documents4 sources
Severity
8.8HIGHNVD
CNA8.1
EPSS
6.4%
top 8.93%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Microsoft Sharepoint Enterprise Server 2016Microsoft Sharepoint Foundation 2013 Service Pack 1Microsoft Sharepoint Server 2019+2 more
Timeline
PublishedJul 14
Latest updateMay 24

Description

Microsoft SharePoint Server Remote Code Execution Vulnerability

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages5 packages

▶CVEListV5microsoft/microsoft_sharepoint_server_201916.0.0 — 16.0.10376.20001
▶CVEListV5microsoft/microsoft_sharepoint_enterprise_server_201616.0.0 — 16.0.5188.1000
▶NVDmicrosoft/sharepoint_server2016, 2019+1

Patches

Patch: portal.msrc.microsoft.com ↗Patch: portal.msrc.microsoft.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-hr4m-jq9r-c4gx: Microsoft SharePoint Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-34467, CVE-2021-34468↗2022-05-24
▶
CVEList
Microsoft SharePoint Server Remote Code Execution Vulnerability↗2021-07-14
▶

📋Vendor Advisories

1
Microsoft
Microsoft SharePoint Server Remote Code Execution Vulnerability↗2021-07-13
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CVE-2021-34520 — Deserialization of Untrusted Data | cvebase