Cyber Resilience

CVE-2024-26212

HighDDoS

Published: 09 April 2024

Published
09 April 2024
Modified
08 January 2025
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 0.5395 98.1th percentile
Risk Priority 47 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-26212 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 1.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2024-26212 is a denial of service vulnerability affecting the DHCP Server Service, assigned a CVSS 3.1 base score of 7.5 with the vector string AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. The weakness is categorized under CWE-400 and was disclosed on 2024-04-09.

An unauthenticated attacker can exploit the flaw remotely over a network connection to trigger a denial of service condition that impacts availability while leaving confidentiality and integrity untouched.

Microsoft has published guidance for the vulnerability in its Security Response Center at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26212. The associated EPSS score has remained flat at a peak of 0.5395 with no material rise observed.

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
≤ 10.0.14393.6897
microsoft
windows server 2019
≤ 10.0.17763.5696
microsoft
windows server 2022
≤ 10.0.20348.2402
microsoft
windows server 2022 23h2
≤ 10.0.25398.830

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