Is CVE-2021-28323 in the CISA KEV catalog?

No. CVE-2021-28323 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-28323?

CVE-2021-28323 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2021-28323?

CVE-2021-28323 has an EPSS score of 4.32% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-28323?

Install KB5001340 for Windows 10. Fixes are available for 23 affected products.

CVE & CISA-KEV Catalog

CVE-2021-28323

MEDIUMEPSS 90th pctl

6.5

CVSS v3

NVD

Description

Windows DNS Information Disclosure Vulnerability

CWE-178

How to fix

Remediation Available

Windows 10Windows

Install:KB5001340Microsoft

Windows 10 Version 1607Windows

Install:KB5001347Microsoft

Windows 10 Version 1803Windows

Install:KB5001339Microsoft

Windows 10 Version 1809Windows

Install:KB5001342Microsoft

Windows 10 Version 1909Windows

Install:KB5001337Microsoft

Windows 10 Version 2004Windows

Install:KB5001330Microsoft

Windows 10 Version 20H2Windows

Install:KB5001330Microsoft

Windows 7Windows

Install:KB5001392Microsoft

Install:KB5001335Microsoft

Windows 8.1Windows

Install:KB5001393Microsoft

Install:KB5001382Microsoft

Windows RT 8.1Windows

Install:KB5001382

Windows Server 2008Windows

Install:KB5001332Microsoft

Install:KB5001389Microsoft

Windows Server 2008 R2Windows

Install:KB5001392Microsoft

Install:KB5001335Microsoft

Windows Server 2012Windows

Install:KB5001383Microsoft

Install:KB5001387Microsoft

Windows Server 2012 (Server Core installation)Windows

Install:KB5001383Microsoft

Install:KB5001387Microsoft

Windows Server 2012 R2Windows

Install:KB5001382Microsoft

Install:KB5001393Microsoft

Windows Server 2012 R2 (Server Core installation)Windows

Install:KB5001393Microsoft

Install:KB5001382Microsoft

Windows Server 2016Windows

Install:KB5001347Microsoft

Windows Server 2016 (Server Core installation)Windows

Install:KB5001347Microsoft

Windows Server 2019Windows

Install:KB5001342Microsoft

Windows Server 2019 (Server Core installation)Windows

Install:KB5001342Microsoft

Windows Server, version 1909 (Server Core installation)Windows

Install:KB5001337Microsoft

Windows Server, version 2004 (Server Core installation)Windows

Install:KB5001330Microsoft

Windows Server, version 20H2 (Server Core Installation)Windows

Install:KB5001330Microsoft

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

4.32%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

Third-Party Advisory2

Embed a live status badge for CVE-2021-28323

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.