Which products and versions are affected by CVE-2020-1421?

Affected: Windows 10 (Microsoft) versions 1607, 1709, 1803, 1809, 1903, 1909, 2004; Windows Server 2016 (Microsoft) versions 1903, 1909, 2004; Windows Server 2019 (Microsoft), among others. The full list is in the CVE brief.

Is CVE-2020-1421 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2020-1421 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2020-1421?

No public exploit code is known.

Is there a fix for CVE-2020-1421?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2020-1421 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2020-1421

High

A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed.An attacker who successfully exploited this vulnerability could gain the same user rights as the local user, aka 'LNK Remote Code Execution…

Published Jul 14, 2020 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2020-1421 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Windows 10 (Microsoft), Windows Server 2016 (Microsoft), Windows Server 2019 (Microsoft) and 14 more products.
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 75% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

8.8

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

EPSS (30-day exploit likelihood)

75%

Higher than 99.4% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2020-1421 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

41 affected entries in total

Product	Affected versions	Fixed in
Windows 10Microsoft	1607, 1709, 1803, 1809, 1903, 1909, 2004	n/a
Windows Server 2016Microsoft	1903, 1909, 2004	n/a
Windows Server 2019Microsoft	See advisory	n/a
Windows	>= 10 Version 1803 for 32-bit Systems	n/a
Windows 10 Version 1903 for 32-bit Systems	>= unspecified	n/a

12 more affected products in the full CVE brief

Timeline

Publicly disclosed
Jul 14, 2020
Last updated
Nov 21, 2024

Weakness Type

CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

References

FAQ

Common Questions.

A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed.An attacker who successfully exploited this vulnerability could gain the same user rights as the local user, aka 'LNK Remote Code Execution Vulnerability'.
Affected: Windows 10 (Microsoft) versions 1607, 1709, 1803, 1809, 1903, 1909, 2004; Windows Server 2016 (Microsoft) versions 1903, 1909, 2004; Windows Server 2019 (Microsoft), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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