Is CVE-2020-1210 in the CISA KEV catalog?

No. CVE-2020-1210 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-1210?

CVE-2020-1210 has a CVSS v3 base score of 9.9 (CRITICAL).

What is the EPSS score for CVE-2020-1210?

CVE-2020-1210 has an EPSS score of 1.76% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2020-1210?

No published fix for CVE-2020-1210 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2020-1210

CRITICALEPSS 76th pctl

9.9

CVSS v3

NVD

Description

A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. 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. Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint. The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.

CWE-494

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

1.76%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

Related Vulnerabilities

Other CWE-494 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-5398	High	7.5	88%	-	Fix
CVE-2022-40799	High	8.8	31%	KEV	-
CVE-2026-3502	High	7.8	5.8%	KEV	Fix
CVE-2018-19234	High	8.8	3.3%	-	Fix
CVE-2016-6567	Critical	9.8	2.9%	-	-
CVE-2016-6564	High	8.1	2.7%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-23.