CVE-2020-1595

CRITICAL

Microsoft SharePoint - Remote Code Execution via Unsafe API Data Input

Title source: llm
STIX 2.1

Description

<p>A remote code execution vulnerability exists in Microsoft SharePoint where APIs aren't properly protected from unsafe data input. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.</p> <p>Exploitation of this vulnerability requires that a user access a susceptible API on an affected version of SharePoint with specially-formatted input.</p> <p>The security update addresses the vulnerability by correcting how SharePoint handles deserialization of untrusted data.</p>

References (1)

Core 1
Core References

Scores

CVSS v3 9.9
EPSS 0.0195
EPSS Percentile 77.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-494
Status published
Products (4)
microsoft/sharepoint_enterprise_server 2013 sp1
microsoft/sharepoint_enterprise_server 2016
microsoft/sharepoint_foundation 2013 sp1
microsoft/sharepoint_server 2019
Published Sep 11, 2020
Tracked Since Feb 18, 2026