CVE-2024-30080Network attack vector

Remote code execution via MSMQ use-after-free

Published Jun 11, 2024 · Updated Aug 10, 2026

Use-after-free in Microsoft Message Queuing on affected Windows releases allows remote attackers to execute code via a crafted MSMQ packet. The MSMQ service references freed memory while processing the packet, but Microsoft has not disclosed the affected function or object lifetime. Exploitation requires Message Queuing to be enabled and reachable on TCP port 1801; successful exploitation executes code on the server.

CVSS severity9.8
Critical
EPSS probability43.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Microsoft Message Queuing on affected Windows releases allows remote attackers to execute code via a crafted MSMQ packet. The MSMQ service references freed memory while processing the packet, but Microsoft has not disclosed the affected function or object lifetime. Exploitation requires Message Queuing to be enabled and reachable on TCP port 1801; successful exploitation executes code on the server.

The record

CVE
CVE-2024-30080
Published
Jun 11, 2024
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-416, T1190
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=10.0.10240.0 <10.0.10240.20680

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20680
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 11 version 21H2version=10.0.22000.0 <10.0.22000.3019
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 10 Version 21H2version=10.0.19044.0 <10.0.19044.4529
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.950
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.7070
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.27170
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.27170
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.4529
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 11 Version 23H2version=10.0.22631.0 <10.0.22631.3737
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.3737
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.7070
Microsoft · Windows Server 2008 Service Pack 2version=6.0.6003.0 <6.0.6003.22720
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2527
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.5936; version=10.0.17763.0 <10.0.17763.5936
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.22023
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)version=6.0.6003.0 <6.0.6003.22720

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1190Exploit Public-Facing Application

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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