Cyber Resilience

CVE-2024-38236

HighDDoS

Published: 10 September 2024

Published
10 September 2024
Modified
17 September 2024
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.1003 93.2th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-38236 is a high-severity Uncontrolled Resource Consumption (CWE-400) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 6.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2024-38236 is a denial-of-service vulnerability in the DHCP Server Service, tracked under CWE-400. It affects Microsoft Windows systems that have the DHCP server role enabled and carries a CVSS 3.1 base score of 7.5 reflecting network attack vector, low attack complexity, and high availability impact with no confidentiality or integrity consequences.

An unauthenticated remote attacker can send specially crafted network traffic to trigger the flaw, causing the DHCP service to become unresponsive and disrupting IP address assignment for clients on the affected network.

The official Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38236 describes available patches and recommended mitigation actions for supported Windows versions.

The associated EPSS score has remained flat at 0.1003 with no material increase since disclosure.

EU & UK References

Vulnerability details

DHCP Server Service Denial of Service 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
≤ 10.0.14393.7336
microsoft
windows server 2019
≤ 10.0.17763.6293
microsoft
windows server 2022
≤ 10.0.20348.2700
microsoft
windows server 2022 23h2
≤ 10.0.25398.1128

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-400

Limiting concurrent sessions directly prevents uncontrolled resource consumption by capping the number of active sessions per user or account.

addresses: CWE-400

Analysis identifies uncontrolled resource consumption indicative of denial-of-service or abuse attempts.

addresses: CWE-400

Contingency plan testing includes resource exhaustion scenarios to verify recovery, making it harder for attackers to sustain exploits that cause uncontrolled consumption.

addresses: CWE-400

Updated contingency plans include current procedures to detect, contain, and recover from resource exhaustion, limiting an attacker's ability to sustain impact from uncontrolled consumption.

addresses: CWE-400

Alternate site allows resumption of operations if resource exhaustion at the primary site is exploited to cause unavailability.

addresses: CWE-400

Alternate telecommunications services enable resumption of essential functions when primary services become unavailable due to uncontrolled resource consumption.

addresses: CWE-400

The team can analyze and respond to resource exhaustion incidents, reducing the impact of attacks that exploit uncontrolled consumption weaknesses.

addresses: CWE-400

Timely maintenance support and spare parts enable rapid recovery from failures induced by uncontrolled resource consumption, shortening the impact window of denial-of-service attacks.

References