CVE-2021-17327.8HighCWE-787

CVE-2021-1732: Windows Win32k Elevation of Privilege Vulnerability

Microsoft · Windows 10 Version 1803

Vendor fix available · Affected: Microsoft Windows 10 Version 1803 · Exploitation: in CISA KEV since 3 Nov 2021

Known ransomware use

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

78.4%probability of exploitation in the next 30 days

99th percentile

050100

Higher than 99% of scored CVEs

7.8HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

Windows Win32k Elevation of Privilege Vulnerability

Affected products10

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

Microsoft · Windows 10 Version 1803from 10.0.0 before publication
Microsoft · Windows 10 Version 1809from 10.0.0 before publication
Microsoft · Windows Server 2019from 10.0.0 before publication
Microsoft · Windows Server 2019 (Server Core installation)from 10.0.0 before publication
Microsoft · Windows 10 Version 1909from 10.0.0 before publication
Microsoft · Windows Server, version 1909 (Server Core installation)from 10.0.0 before publication
Microsoft · Windows 10 Version 2004from 10.0.0 before publication
Microsoft · Windows Server version 2004from 10.0.0 before publication
Microsoft · Windows 10 Version 20H2from 10.0.0 before publication
Microsoft · Windows Server version 20H2from 10.0.0 before publication

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 · known ransomware use · catalogue entry
Public check: No public nuclei template
Weakness: Out-of-bounds Write · Memory Corruption
Vendor: Microsoft
Published: February 2021
Band: Exploited in the wild, February 2021

What changed

5 Nov
CISA’s KEV entry now notes known ransomware use CISA
3 Nov 2021
CISA added it to the KEV catalogue CISA

CoverageNo articles yet

No CyberSIXT article names CVE-2021-1732 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.