CVE-2020-16939
mediumpriority · track · 29EPSS 0.024 · 84 %ileexploit · PoCEURUUSEPSS · scored 2026-10-27
<p>An elevation of privilege vulnerability exists when Group Policy improperly checks access. An attacker who successfully exploited this vulnerability could run processes in an elevated context.</p> <p>To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system.</p> <p>The security update addresses the vulnerability by correcting how Group Policy checks access.</p>
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.1–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
affected products (75)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
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references (11)
External citations — patches, advisories, analysis.
- http://www.nsfocus.net/vulndb/50032cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-16939cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16939cnnvd
- https://portal.msrc.microsoft.com/en-us/security-guidancePatchcnnvd
- https://portal.msrc.microsoft.com/zh-CN/security-guidance/advisory/CVE-2020-16939cnnvd
- https://vigilance.fr/vulnerability/Microsoft-Windows-vulnerabilities-of-October-2020-33562cnnvd
- https://www.zerodayinitiative.com/advisories/ZDI-20-1254/cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16939enisa_euvd
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