CVE-2024-26229

HIGH EXPLOITED

Windows CSC Service - Elevation of Privilege via Heap-based Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2024-26229 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 8 public exploits from researchers including RalfHacker, Cracked5pider, apkc.

AI-analyzed exploit summary This is a functional local privilege escalation (LPE) exploit for CVE-2024-26229, targeting a Windows kernel vulnerability via DKOM (Direct Kernel Object Manipulation). It leverages NtFsControlFile to overwrite the EPROCESS token and achieve SYSTEM privileges.

Description

Windows CSC Service Elevation of Privilege Vulnerability

Exploits (8)

nomisec WORKING POC 140 stars
by RalfHacker · local
https://github.com/RalfHacker/CVE-2024-26229-exploit

This is a functional local privilege escalation (LPE) exploit for CVE-2024-26229, targeting a Windows kernel vulnerability via DKOM (Direct Kernel Object Manipulation). It leverages NtFsControlFile to overwrite the EPROCESS token and achieve SYSTEM privileges.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows (pre-April 2024 patches)
Auth required
Prerequisites: Local access to a vulnerable Windows system · Ability to compile and execute C code
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 40 stars
by Cracked5pider · local
https://github.com/Cracked5pider/eop24-26229

This repository contains a Firebeam plugin for exploiting CVE-2024-26229, a vulnerability in csc.sys that allows kernel R/W memory access to achieve local privilege escalation (LPE) by corrupting KTHREAD->PreviousMode and leveraging DKOM to copy the system process token.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Windows csc.sys (specific version not specified)
Auth required
Prerequisites: Low-privileged user access · Firebeam (kaine's RISC-V VM) plugin environment
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 27 stars
by apkc · local
https://github.com/apkc/CVE-2024-26229-BOF

This repository contains a functional proof-of-concept exploit for CVE-2024-26229, a Windows kernel vulnerability in the CSC driver. The exploit leverages arbitrary memory writes to achieve local privilege escalation (LPE) via token manipulation.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Windows 11 22H2 Build 22621 (CSC driver)
No auth needed
Prerequisites: Access to a vulnerable Windows 11 system · Ability to execute arbitrary code in user mode
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WRITEUP 12 stars
by team-MineDEV · poc
https://github.com/team-MineDEV/CVE-2024-26229

The repository contains a README describing CVE-2024-26229, a Windows CSC service privilege escalation vulnerability involving a heap-based buffer overflow. No exploit code is provided, only a description and a claim of bypassing Kaspersky/Windows Defender.

Classification
Writeup 30%
Attack Type
Lpe
Complexity
Theoretical
Reliability
Theoretical
Target: Windows CSC Service (version not specified)
No auth needed
Prerequisites: Access to a vulnerable Windows system with CSC service
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by 0xGunrunner · local
https://github.com/0xGunrunner/CVE-2024-26229-BOF

This repository contains a functional Beacon Object File (BOF) exploit for CVE-2024-26229, a Windows CSC driver local privilege escalation vulnerability. The exploit leverages DKOM (Direct Kernel Object Manipulation) to steal the SYSTEM token by corrupting KTHREAD->PreviousMode via a crafted IOCTL.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Windows 10 / Server 2019 (Build 19041+)
No auth needed
Prerequisites: CSC driver enabled (Start = 1) · x64 architecture · specific kernel offsets for EPROCESS->Token and KTHREAD->PreviousMode
devstral-2 · analyzed Apr 15, 2026 Full analysis →
nomisec WORKING POC
by vettrivel007 · client-side
https://github.com/vettrivel007/CVE-2024-26229

This is a functional local privilege escalation (LPE) exploit for CVE-2024-26229 targeting Windows systems. It leverages a vulnerability in the CSC (Client-Side Caching) driver to manipulate kernel memory, ultimately stealing the SYSTEM token to elevate privileges.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Microsoft Windows (specific version not specified)
Auth required
Prerequisites: Local access to a vulnerable Windows system · Ability to compile and execute the exploit
devstral-2 · analyzed Apr 09, 2026 Full analysis →
nomisec STUB
by mqxmm · poc
https://github.com/mqxmm/CVE-2024-26229

The repository contains only a README.md file referencing another GitHub repository for CVE-2024-26229, with no actual exploit code or technical details provided.

Classification
Stub 10%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: unknown
No auth needed
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by dkstar11q · poc
https://github.com/dkstar11q/CVE-2024-26229-lpe

This PoC exploits CVE-2024-26229, a vulnerability in the csc.sys driver on Windows 11 22H2, leveraging improper address validation in an IOCTL to achieve local privilege escalation (LPE) via DKOM (Direct Kernel Object Manipulation).

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Windows 11 22H2 (Build 22621) with csc.sys driver
No auth needed
Prerequisites: Access to a vulnerable Windows 11 22H2 system · Ability to execute arbitrary code in user mode
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.8559
EPSS Percentile 99.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

VulnCheck KEV 2024-11-19
CWE
CWE-122
Status published
Products (15)
microsoft/windows_10_1507 < 10.0.10240.20596 (2 CPE variants)
microsoft/windows_10_1607 < 10.0.14393.6897 (2 CPE variants)
microsoft/windows_10_1809 < 10.0.17763.5696
microsoft/windows_10_21h2 < 10.0.19044.4291
microsoft/windows_10_22h2 < 10.0.19045.4291
microsoft/windows_11_21h2 < 10.0.22000.2899
microsoft/windows_11_22h2 < 10.0.22621.3447
microsoft/windows_11_23h2 < 10.0.22631.3447
microsoft/windows_server_2008
microsoft/windows_server_2008 r2 sp1
... and 5 more
Published Apr 09, 2024
Tracked Since Feb 18, 2026