CVE-2024-30051Known exploitationPublic exploit

SYSTEM-integrity code execution via undersized heap allocation

Published May 14, 2024 · Updated Oct 21, 2025

Heap-based buffer overflow in Windows DWM Core Library allows local users with low privileges to execute code at SYSTEM integrity. CCommandBuffer::Initialize rounds an attacker-controlled shared-buffer length down for allocation but passes the full length to memcpy. A local session and low-privileged code execution are required; successful exploitation runs code as the DWM user at SYSTEM integrity.

CVSS severity7.8
High
EPSS probability5.64%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Windows DWM Core Library allows local users with low privileges to execute code at SYSTEM integrity. CCommandBuffer::Initialize rounds an attacker-controlled shared-buffer length down for allocation but passes the full length to memcpy. A local session and low-privileged code execution are required; successful exploitation runs code as the DWM user at SYSTEM integrity.

The record

CVE
CVE-2024-30051
Published
May 14, 2024
Updated
Oct 21, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-122, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 14, 2024Exploitation reportedCISA Known Exploited Vulnerabilities catalog entry
  2. May 14, 2024CVE publishedPublication date reported by the CVE source.
  3. Oct 21, 2025Record 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=10.0.10240.0 <10.0.10240.20651

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20651
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.5820
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.6981
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.2960
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.4412
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.6981
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.3593
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.4412
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.5820
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.3593
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.3593
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.6981
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2461
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.5820; version=10.0.17763.0 <10.0.17763.5820

Published CVSS scores

7.8Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:L/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1068Exploitation for Privilege Escalation

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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