CVE-2024-30070Network attack vector

Unauthenticated DHCP service interruption via integer underflow

Published Jun 11, 2024 · Updated Aug 10, 2026

Integer underflow in the DHCP Server service in Microsoft Windows Server allows remote attackers to interrupt DHCP service over the network. Microsoft has not published the affected code locus, crafted DHCP input, or exact operation whose underflow disrupts processing. The DHCP Server role must be installed and reachable; exploitation requires no authentication or user interaction and affects availability only.

CVSS severity7.5
High
EPSS probability2.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer underflow in the DHCP Server service in Microsoft Windows Server allows remote attackers to interrupt DHCP service over the network. Microsoft has not published the affected code locus, crafted DHCP input, or exact operation whose underflow disrupts processing. The DHCP Server role must be installed and reachable; exploitation requires no authentication or user interaction and affects availability only.

The record

CVE
CVE-2024-30070
Published
Jun 11, 2024
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Windows Server 2019
Classifications
CWE-191, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.17763.0 <10.0.17763.5936

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.5936
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.7070
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.24919
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.24919
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.7070
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.22023
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.5936
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.22023

Published CVSS scores

7.5MicrosoftCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-191Integer Underflow (Wrap or Wraparound)
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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