CVE-2021-337427.5HighCWE-787

CVE-2021-33742: Windows MSHTML Platform Remote Code Execution Vulnerability

Microsoft · Windows 10 Version 1809

Vendor fix available · Affected: Microsoft Windows 10 Version 1809 · Exploitation: in CISA KEV since 3 Nov 2021

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

ExploitationIn CISA KEV

In CISA KEVCISA KEV catalogue3 Nov 2021
Exploited (reported): not seen
Scanning observed: not seen
Proof of concept public: not seen
Not established: not seen

59.4%probability of exploitation in the next 30 days

99th percentile

050100

Higher than 99% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

Windows MSHTML Platform Remote Code Execution Vulnerability

Affected products17

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Microsoft · Windows 10 Version 1809from 10.0.0 before 10.0.17763.1999
Microsoft · Windows Server 2019from 10.0.0 before 10.0.17763.1999
Microsoft · Windows 10 Version 1909from 10.0.0 before 10.0.18363.1621
Microsoft · Windows 10 Version 21H1from 10.0.0 before 10.0.19043.1052
Microsoft · Windows 10 Version 2004from 10.0.0 before 10.0.19041.1052
Microsoft · Windows 10 Version 20H2from 10.0.0 before 10.0.19042.1052
Microsoft · Windows 10 Version 1507from 10.0.0 before 10.0.10240.18967
Microsoft · Windows 10 Version 1607from 10.0.0 before 10.0.14393.4467
Microsoft · Windows Server 2016from 10.0.0 before 10.0.14393.4467
Microsoft · Windows 7from 6.1.0 before 6.1.7601.25632; from 6.1.0 before publication
Microsoft · Windows 7 Service Pack 1from 6.1.0 before 6.1.7601.25632; from 6.1.0 before publication
Microsoft · Windows 8.1from 6.3.0 before 6.3.9600.20045; from 6.3.0 before 1.0.0.0
Microsoft · Windows Server 2008 Service Pack 2from 6.0.0 before 6.0.6003.21137; from 6.0.0 before publication
Microsoft · Windows Server 2008 Service Pack 2from 6.0.0 before 6.0.6003.21137; from 6.0.0 before publication
Microsoft · Windows Server 2008 R2 Service Pack 1from 6.1.0 before 6.1.7601.25632; from 6.1.0 before publication
Microsoft · Windows Server 2012from 6.2.0 before 6.2.9200.23372; from 6.2.0 before 1.0.0.0
Microsoft · Windows Server 2012 R2from 6.3.0 before 6.3.9600.20045; from 6.3.0 before 1.0.0.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.
CISA KEV: Listed since 3 Nov 2021 · catalogue entry
Public check: No public nuclei template
Weakness: Out-of-bounds Write · Memory Corruption
Vendor: Microsoft
Published: June 2021
Band: Exploited in the wild, June 2021

What changed

3 Nov 2021
CISA added it to the KEV catalogue CISA

CoverageNo articles yet

No CyberSIXT article names CVE-2021-33742 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.