SARA / Free Tools / CVE / CVE-2023-38162

CVE-2023-38162 — DHCP Server Service Denial of Service Vulnerability

DHCP Server Service Denial of Service Vulnerability

CVSS

7.5 HIGH

EPSS

6.89% (top 8.70%)

CWE

CWE-191

Published

2023-09-12T16:58:17.503Z

Last modified

2025-10-30T18:17:41.544Z

CVSS vector

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

01What is this vulnerability?

DHCP Server Service Denial of Service Vulnerability

Vendor	Product	Versions
Microsoft	Windows Server 2019	10.0.17763.0
Microsoft	Windows Server 2019 (Server Core installation)	10.0.17763.0
Microsoft	Windows Server 2022	10.0.20348.0
Microsoft	Windows Server 2016	10.0.14393.0
Microsoft	Windows Server 2016 (Server Core installation)	10.0.14393.0
Microsoft	Windows Server 2012	6.2.9200.0
Microsoft	Windows Server 2012 (Server Core installation)	6.2.9200.0
Microsoft	Windows Server 2012 R2	6.3.9600.0
Microsoft	Windows Server 2012 R2 (Server Core installation)	6.3.9600.0

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

msrc.microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38162

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