CVE-2021-1732

high

Description

Windows Win32k Elevation of Privilege Vulnerability

References

https://www.edgescan.com/wp-content/uploads/2024/03/2023-Vulnerability-Statistics-Report.pdf

https://research.checkpoint.com/2024/raspberry-robin-keeps-riding-the-wave-of-endless-1-days/

https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective

https://www.welivesecurity.com/en/eset-research/moustachedbouncer-espionage-against-foreign-diplomats-in-belarus/

https://ti.dbappsecurity.com.cn/blog/articles/2021/02/10/windows-kernel-zero-day-exploit-is-used-by-bitter-apt-in-targeted-attack/

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1732

https://www.tenable.com/blog/vulnerability-prioritization-attacker-mapping-severity-exploitation-risk

https://www.tenable.com/blog/microsofts-june-2024-patch-tuesday-addresses-49-cves

https://www.tenable.com/blog/microsofts-may-2023-patch-tuesday-addresses-38-cves-cve-2023-29336

https://www.tenable.com/blog/contileaks-chats-reveal-over-30-vulnerabilities-used-by-conti-ransomware-affiliates

https://www.tenable.com/blog/microsofts-february-2022-patch-tuesday-addresses-48-cves-cve-2022-21989

https://www.tenable.com/blog/microsoft-june-2021-patch-tuesday-49-cves-cve-2021-31955-cve-2021-31956-and-cve-2021-33742

https://www.tenable.com/blog/microsoft-february-2021-patch-tuesday-cve-2021-24074-cve-2021-24094-cve-2021-24086

https://github.com/Joe1sn/CVE_2021_40449

https://github.com/Sausageinforest/CVE-2021-1732

https://github.com/r2bet/CVE-2021-1732

https://github.com/4dp/CVE-2021-1732

https://github.com/fenalik/CVE-2021-1732

https://github.com/whoismept/IronSharp

https://github.com/KaLendsi/CVE-2021-1732-Exploit

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1732

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1732

http://packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-Escalation.html

http://packetstormsecurity.com/files/161880/Win32k-ConsoleControl-Offset-Confusion.html

Details

Source: Mitre, NVD

Published: 2021-02-25

Updated: 2026-08-12

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.78376