CVE-2021-1732

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.784 · 100 %ileexploit · PoCEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 14 exploits · PoC

Likely / severe?

78.4% (100th) EPSS

CVSS 4.6 · medium

Is it mine?

29 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · fstec_bdu

added 2021-11-03remediate by 2021-11-17

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-26

Microsoft Win32k Privilege Escalation Vulnerability

Windows Win32k Elevation of Privilege Vulnerability

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–7.8

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:P/E:Hsecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:Csecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 1.8 · impact 5.9

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-119US

exploits (14)

Public proof-of-concept and weaponised exploit code.

exploit/windows/local/cve_2022_21882_win32kWin32k ConsoleControl Offset ConfusionPoC · metasploit
4dp/CVE-2021-1732CVE-2021-1732 Microsoft Windows 10 本地提权漏研究及Poc/Exploit开发PoC · poc_in_github
BeneficialCode/CVE-2021-1732BeneficialCode/CVE-2021-1732PoC · poc_in_github
ExploitCN/CVE-2021-1732-EXP-对1909下windows版本的EXP进行分析，并对代码添加调试和注释PoC · poc_in_github
KaLendsi/CVE-2021-1732-ExploitCVE-2021-1732 ExploitPoC · poc_in_github
asepsaepdin/CVE-2021-1732asepsaepdin/CVE-2021-1732PoC · poc_in_github

affected products (29)

Products and version ranges known to be affected.

Microsoft Windows 10 Version 180310.0.0 → publicationenisa_euvdEU
Microsoft Windows 10 Version 180910.0.0 → publicationenisa_euvdEU
Microsoft Windows 10 Version 190910.0.0 → publicationenisa_euvdEU
Microsoft Windows 10 Version 200410.0.0 → publicationenisa_euvdEU
Microsoft Windows 10 Version 20H210.0.0 → publicationenisa_euvdEU
Microsoft Windows Server 201910.0.0 → publicationenisa_euvdEU
Microsoft Windows Server 2019 (Server Core installation)10.0.0 → publicationenisa_euvdEU
Microsoft Windows Server version 200410.0.0 → publicationenisa_euvdEU
Microsoft Windows Server version 20H210.0.0 → publicationenisa_euvdEU
Microsoft Windows Server, version 1909 (Server Core installation)10.0.0 → publicationenisa_euvdEU
Microsoft Corp Windows 10 1803all versionsfstec_bduRU
Microsoft Corp Windows 10 1809all versionsfstec_bduRU
Microsoft Corp Windows 10 1909all versionsfstec_bduRU
Microsoft Corp Windows 10 2004all versionsfstec_bduRU
Microsoft Corp Windows 10 20H2all versionsfstec_bduRU
Microsoft Corp Windows Server 1909 (Server Core Installation)all versionsfstec_bduRU
Microsoft Corp Windows Server 2004 (Server Core Installation)all versionsfstec_bduRU
Microsoft Corp Windows Server 2019all versionsfstec_bduRU
Microsoft Corp Windows Server 2019 (Server Core installation)all versionsfstec_bduRU
Microsoft Corp Windows Server 20H2 (Server Core Installation)all versionsfstec_bduRU

showing 20 of 29

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu NVD CVE.org MITRE

published 2021-02-25modified 2026-08-14

related (16,097)

Related entries.

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+16092 more

references (15)

External citations — patches, advisories, analysis.

scry

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