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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Login with standard user account
  2. Exploit
    Access Windows Accessibility Infrastructure
  3. Execution
    Exploit incorrect permission assignment
  4. Impact
    Execute code with SYSTEM privileges

Vulnerability Assessment

Weakness
CWE
CWE-732
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V13 - Configuration Permission assignment review
Exploitation Conditions

Local login required with standard user privileges on Windows system. Specifically requires local access to ATBroker.exe and vulnerable permission configuration on critical resources managed by Windows Accessibility Infrastructure.
Impact

CVSS 7.8 (HIGH). Attack vector: Local. Complexity: Low. Privileges required: Low. User interaction: None. Exploitable via local access.
Exploit ScenarioDerived

An attacker could exploit this vulnerability to compromise the affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Privilege escalation in Windows Accessibility Infrastructure (ATBroker.exe) across Windows 10, Windows 11, and Windows Server 2022 stems from improper permission assignments on a critical resource. A local authenticated attacker can exploit this misconfiguration to gain elevated privileges without user interaction. No patch is currently available for this vulnerability.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:55 CVSS 7.8

Incorrect permission assignment for critical resource in Windows Accessibility Infrastructure (ATBroker.exe) allows an authorized attacker to elevate privileges locally. [CVSS 7.8 HIGH]

RemediationAI

Monitor vendor advisories for a patch.

Affected Packages

microsoft windows_10_version_1607_10_0_14393_8957 fix: Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8957, Windows 10 Version 1607 for x64-based Systems 10.0.14393.8957
microsoft windows_10_version_1809_10_0_17763_8511 fix: Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8511, Windows 10 Version 1809 for x64-based Systems 10.0.17763.8511
microsoft windows_10_version_21h2_10_0_19044_7058 fix: Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.7058, Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.7058, Windows 10 Version 21H2 for x64-based Systems 10.0.19044.7058
microsoft windows_10_version_22h2_10_0_19045_7058 fix: Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.7058, Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.7058, Windows 10 Version 22H2 for x64-based Systems 10.0.19045.7058
microsoft windows_11_version_23h2_10_0_22631_6783 fix: Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6783, Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6783
microsoft windows_11_version_24h2_10_0_26100_8037 fix: Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.8037, Windows 11 Version 24H2 for x64-based Systems 10.0.26100.8037
microsoft windows_11_version_25h2_10_0_26200_8037 fix: Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.8037, Windows 11 Version 25H2 for x64-based Systems 10.0.26200.8037
microsoft windows_11_version_26h1_10_0_28000_1719 fix: Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1719, Windows 11 version 26H1 for x64-based Systems 10.0.28000.1719
microsoft windows_server_2012_6_2_9200_25973 fix: Windows Server 2012 6.2.9200.25973, Windows Server 2012 (Server Core installation) 6.2.9200.25973
microsoft windows_server_2012_r2_6_3_9600_23074 fix: Windows Server 2012 R2 6.3.9600.23074, Windows Server 2012 R2 (Server Core installation) 6.3.9600.23074
microsoft windows_server_2016_10_0_14393_8957 fix: Windows Server 2016 10.0.14393.8957, Windows Server 2016 (Server Core installation) 10.0.14393.8957
microsoft windows_server_2019_10_0_17763_8511 fix: Windows Server 2019 10.0.17763.8511, Windows Server 2019 (Server Core installation) 10.0.17763.8511
microsoft windows_server_2022_10_0_20348_4893 fix: Windows Server 2022 10.0.20348.4893, Windows Server 2022 (Server Core installation) 10.0.20348.4893
microsoft windows_server_2022_23h2_edition_10_0_25398_2207 fix: Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2207
microsoft windows_server_2025_10_0_26100_32522 fix: Windows Server 2025 10.0.26100.32522, Windows Server 2025 (Server Core installation) 10.0.26100.32522

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 15 packages in microsoft

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Technical ContextAI · show details

This vulnerability (CWE-732: Incorrect Permission Assignment for Critical Resource) Incorrect permission assignment for critical resource in Windows Accessibility Infrastructure (ATBroker.exe) allows an authorized attacker to elevate privileges locally.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

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

Executive ViewAI

Why It Matters

A privilege escalation vulnerability in Windows Accessibility Infrastructure (ATBroker.exe) allows authorized users to gain elevated system access, potentially compromising sensitive data and critical systems. This affects all Windows environments where accessibility features are enabled, and currently has no vendor patch available, requiring immediate compensating controls.

Business Impact: High
Compensating Controls

Disable non-essential Windows accessibility features (Sticky Keys, Filter Keys) via Group Policy if business operations permit. Enforce strict User Access Control (UAC) settings and require administrator approval for privilege elevation. Implement application whitelisting to restrict ATBroker.exe execution. Monitor and log all accessibility feature usage and privilege escalation attempts. Restrict local administrator account access and enforce multi-factor authentication for administrative accounts. Apply principle of least privilege across user accounts.

Threat Intelligence Overview

EPSS Score
0.1%
Top 83% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Small
Automatable· derived
No
Human Impact
High

Priority Score

59
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
+ 5 more

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References

Advisories & patches
ADVISORY https://vuldb.com/?id.350000 REF https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24291

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