Cyber Resilience

CVE-2023-28231

High

Published: 11 April 2023

Published
11 April 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.7516 98.9th percentile
Risk Priority 63 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-28231 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 1.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2023-28231 is a remote code execution vulnerability in the DHCP Server Service, assigned a CVSS 3.1 score of 8.8 with an attack vector of adjacent network access. The affected component is the DHCP server functionality in supported Windows Server releases, and the weakness is categorized under CWE-122.

An unauthenticated attacker positioned on the same network segment can send specially crafted DHCP messages to trigger the flaw, achieving arbitrary code execution that grants full control over confidentiality, integrity, and availability of the target system.

Microsoft publishes mitigation details and patches through its Security Response Center at the referenced advisory URL. The associated EPSS score has remained elevated, with a current value of 0.7516 and a recorded peak of 0.7656.

EU & UK References

Vulnerability details

DHCP Server Service Remote Code Execution Vulnerability

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
windows server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
microsoft
windows server 2016
all versions
microsoft
windows server 2019
all versions
microsoft
windows server 2022
all versions

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References