CVE-2020-0624

Kernel privilege escalation via mishandled memory objects

Published Jan 14, 2020 · Updated Aug 4, 2024

Win32k elevation of privilege in Microsoft Windows 10 and Windows Server 1903 and 1909 allows local users to execute code in kernel mode. The Win32k component improperly handles in-memory objects, but Microsoft has not published the affected object type or the precise lifetime or bounds operation. Exploitation requires a user to log on and run a crafted application, after which code can run with kernel privileges and fully control the affected system.

CVSS severity7.8
High
EPSS probability1.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Win32k elevation of privilege in Microsoft Windows 10 and Windows Server 1903 and 1909 allows local users to execute code in kernel mode. The Win32k component improperly handles in-memory objects, but Microsoft has not published the affected object type or the precise lifetime or bounds operation. Exploitation requires a user to log on and run a crafted application, after which code can run with kernel privileges and fully control the affected system.

The record

CVE
CVE-2020-0624
Published
Jan 14, 2020
Updated
Aug 4, 2024
Vendor
Microsoft
Product
Windows 10 Version 1909
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 14, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows 10 Version 1909version=unspecified
Microsoft · Windows Server, version 1903 (Server Core installation)version=unspecified
Microsoft · Windows Server, version 1909 (Server Core installation)version=unspecified
Microsoft · Windows 10 Version 1903version=unspecified

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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