CVE-2021-1732

HIGHNVD 7.89.0▲Trending — 5 sources updated this weekExploited in the wild

7.8

Windows Win32k Elevation of Privilege Vulnerability

CVSS v3: 7.8
EG Score: 9.0(high)
EPSS: 99.5%
KEV: ⚠ Exploited

Published

February 25, 2021

Last Modified

October 30, 2025

Advisory Details (4)

Auto-updated Jun 3, 2026

⚠️ Active exploitation confirmed. Patch available. Sources: microsoft, cisa.

cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

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

microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

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

generic

Packet Storm

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

generic

Packet Storm

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

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Microsoft MSRCCVE-2021-17322021-02-09
Windows Win32k Elevation of Privilege Vulnerability

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 19:40 UTCEG score recompute
2026-06-05 19:40 UTCVendor advisory
2026-06-05 19:40 UTCGHSA enrichment
2026-06-05 15:57 UTCEG score recompute
2026-06-05 15:57 UTCVendor advisory
2026-06-05 15:57 UTCGHSA enrichment
2026-06-05 12:14 UTCEG score recompute
2026-06-05 12:14 UTCVendor advisory
2026-06-05 12:14 UTCGHSA enrichment
2026-06-05 08:30 UTCEG score recompute
2026-06-05 08:30 UTCVendor advisory
2026-06-05 08:30 UTCGHSA enrichment
2026-06-05 04:48 UTCEG score recompute
2026-06-05 04:48 UTCVendor advisory
2026-06-05 04:48 UTCGHSA enrichment
2026-06-05 01:05 UTCEG score recompute
2026-06-05 01:05 UTCVendor advisory
2026-06-05 01:05 UTCGHSA enrichment
2026-06-04 21:22 UTCEG score recompute
2026-06-04 21:22 UTCVendor advisory

Publicly available exploits

(7 references)

Working exploit code is in the public domain (1 Metasploit module) (6 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoC4dp/CVE-2021-1732
First seen Mar 9, 2023
CVE-2021-1732 Microsoft Windows 10 本地提权漏研究及Poc/Exploit开发
Open source ↗
GitHub PoCfenalik/CVE-2021-1732
First seen Nov 1, 2022
CVE-2021-1732 Microsoft Windows 10 本地提权漏研究及Poc/Exploit开发
Open source ↗
GitHub PoCexploitblizzard/Windows-Privilege-Escalation-CVE-2021-1732
First seen Apr 25, 2021
Read my blog for more info -
Open source ↗
GitHub PoCPai-Po/CVE-2021-1732
First seen Apr 23, 2021
CVE-2021-1732 poc & exp; tested on 20H2
Open source ↗
GitHub PoClinuxdy/CVE-2021-1732_exp
First seen Apr 2, 2021
Open source ↗
GitHub PoCKaLendsi/CVE-2021-1732-Exploit
First seen Mar 5, 2021
CVE-2021-1732 Exploit
Open source ↗
Metasploitexploit/windows/local/cve_2022_21882_win32k✓ verified
First seen Feb 9, 2021
Win32k ConsoleControl Offset Confusion
Open source ↗

Frequently asked(6)

What is CVE-2021-1732?

CVE-2021-1732 is a high vulnerability published on February 25, 2021. Windows Win32k Elevation of Privilege Vulnerability

When was CVE-2021-1732 disclosed?

CVE-2021-1732 was first published in the National Vulnerability Database on February 25, 2021, with the most recent update on October 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-1732 actively exploited?

Yes. CISA added CVE-2021-1732 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Microsoft Win32k. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2021-1732?

CVE-2021-1732 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.

Which products are affected by CVE-2021-1732?

CVE-2021-1732 affects Microsoft Win32k. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2021-1732?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-1732, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-1732

Explore →

Is Your Infrastructure Affected by CVE-2021-1732?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2021-1732

Published

Last Modified

Advisory Details (4)

Known Exploited Vulnerabilities Catalog | CISA

Security Update Guide - Microsoft Security Response Center

Packet Storm

Packet Storm

Weakness Classification(2)

All Vendor Advisories

Data Freshness Timeline

Publicly available exploits

Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-1732?

Same vendor

Same CWE

CVE-2021-1732

📅 Published

🔄 Last Modified

📋 Advisory Details (4)

Known Exploited Vulnerabilities Catalog | CISA

Security Update Guide - Microsoft Security Response Center

Packet Storm

Packet Storm

Weakness Classification(2)

All Vendor Advisories

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-1732?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

Advisory Details (4)

Frequently asked(6)

Related CVEs(same vendor + same CWE)