DHCP Server Service Denial of Service Vulnerability

published 2023-09-12 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-41987

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 10.7%; EPSS 10.7% chance of exploitation in 30 days, percentile 95%
public exploits: 0; none known

Patch / fix

fixed in 9 links 1

Microsoft Windows Server 2019 10.0.17763.4851
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.4851
Microsoft Windows Server 2022 10.0.20348.1970
Microsoft Windows Server 2016 10.0.14393.6252
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.6252
Microsoft Windows Server 2012 6.2.9200.24462
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.24462
Microsoft Windows Server 2012 R2 6.3.9600.21563
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.21563

msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38162 advisory

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 16 mo ago (2025-06-25)

Exploit prediction

10.69% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	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
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Microsoft Windows Server 2019
Microsoft Windows Server 2019 (Server Core installation)
Microsoft Windows Server 2022
Microsoft Windows Server 2016
Microsoft Windows Server 2016 (Server Core installation)
Microsoft Windows Server 2012
Microsoft Windows Server 2012 (Server Core installation)
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2012 R2 (Server Core installation)

Classification

Weakness

CWE-191 Integer Underflow (Wrap or Wraparound)
CWE-400 Uncontrolled Resource Consumption

References

msrc.microsoft.com /update-guide/vulnerability/CVE-2023-38162
vendor-advisory, patch

Sources

CVE List CVE-2023-38162
NVD CVE-2023-38162

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary