CVE-2026-24291

HIGH

Windows Accessibility Infrastructure - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 4 public exploits for CVE-2026-24291. PoCs published by uname1able, tracyliving606, lennertdefauw.

AI-analyzed exploit summary This repository contains a functional exploit for CVE-2026-24291, leveraging a Windows registry symlink vulnerability to manipulate registry keys. The exploit uses an oplock on a system file and registry manipulation to achieve privilege escalation.

Description

Incorrect permission assignment for critical resource in Windows Accessibility Infrastructure (ATBroker.exe) allows an authorized attacker to elevate privileges locally.

Exploits (4)

nomisec WORKING POC
by uname1able · poc
https://github.com/uname1able/CVE-2026-24291

This repository contains a functional exploit for CVE-2026-24291, leveraging a Windows registry symlink vulnerability to manipulate registry keys. The exploit uses an oplock on a system file and registry manipulation to achieve privilege escalation.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Racy
Target: Windows 10 21H2 (19044.6937) amd64
Auth required
Prerequisites: Local access to the target system · Ability to execute code with sufficient privileges to manipulate registry keys
devstral-2 · analyzed Apr 09, 2026 Full analysis →
nomisec SUSPICIOUS
by tracyliving606 · poc
https://github.com/tracyliving606/RegPwn

The repository claims to be a local privilege escalation exploit for CVE-2026-24291 but lacks actual exploit code in the provided files. The README directs users to download an executable from GitHub releases, which is a common tactic for distributing malware.

Classification
Suspicious 90%
Attack Type
Lpe
Complexity
Theoretical
Reliability
Theoretical
Target: Windows 10, Windows 11, Windows Server 2016/2019/2022
Auth required
Prerequisites: Administrator access · Windows 10/11 or Windows Server 2016/2019/2022
devstral-2 · analyzed Apr 09, 2026 Full analysis →
nomisec WORKING POC
by lennertdefauw · poc
https://github.com/lennertdefauw/CVE-2026-24291

This repository contains a functional exploit for CVE-2026-24291, which leverages a registry manipulation vulnerability to achieve local privilege escalation (LPE) on Windows systems. The exploit includes a Go-based payload that creates a local administrator account and a C# tool (RegPwn) that manipulates registry keys to trigger the vulnerability.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Windows (specific version not specified)
Auth required
Prerequisites: Local access to a vulnerable Windows system · Ability to execute code with sufficient privileges to manipulate registry keys
devstral-2 · analyzed Mar 19, 2026 Full analysis →
nomisec WORKING POC
by n0isegat3 · poc
https://github.com/n0isegat3/RegPwnBRc4BOF

This repository contains a functional Brute Ratel C4 BOF (Beacon Object File) exploit for CVE-2026-24291, which leverages a registry symlink race condition in Windows Accessibility ATConfig to escalate privileges. The exploit targets the `msiserver` service's `ImagePath` to achieve local privilege escalation on unpatched Windows systems.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Racy
Target: Windows 11 25H2/24H2, Windows 10 21H2, Windows Server 2016/2019/2022 (pre-March 2026 patch)
No auth needed
Prerequisites: Unpatched Windows system · Normal user context
devstral-2 · analyzed Mar 19, 2026 Full analysis →

Scores

CVSS v3 7.8
EPSS 0.0324
EPSS Percentile 86.6%
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 none
Automatable no
Technical Impact total

Details

CWE
CWE-732
Status published
Products (37)
Microsoft/Windows 10 Version 1607 10.0.14393.0 - 10.0.14393.8957
Microsoft/Windows 10 Version 1809 10.0.17763.0 - 10.0.17763.8511
Microsoft/Windows 10 Version 21H2 10.0.19044.0 - 10.0.19044.7058
Microsoft/Windows 10 Version 22H2 10.0.19045.0 - 10.0.19045.7058
Microsoft/Windows 11 version 22H3 10.0.22631.0 - 10.0.22631.6783
Microsoft/Windows 11 Version 23H2 10.0.22631.0 - 10.0.22631.6783
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.8037
Microsoft/Windows 11 Version 25H2 10.0.26200.0 - 10.0.26200.8037
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.1719
Microsoft/Windows 11 Version 26H1 10.0.28000.0 - 10.0.28000.1719
... and 27 more
Published Mar 10, 2026
Tracked Since Mar 11, 2026