Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
ReconObtain low-privilege Windows account
-
DeliverySend crafted network requests to Device Association Service
-
ExploitTrigger use-after-free race condition
-
InstallGroom heap with attacker-controlled data
-
C2Induce legitimate user device-pairing action
-
ExecuteRedirect freed-pointer execution
-
ImpactGain elevated privileges on target system
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Memory lifecycle management
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires the attacker to hold a valid low-privilege Windows account (PR:L) - unauthenticated remote exploitation is not supported by the CVSS vector. User interaction (UI:R) is additionally required: a legitimate user on the targeted system must perform some action - likely initiating or completing a device association or pairing event - to trigger the vulnerable Device Association Service code path. High attack complexity (AC:H) further constrains exploitation, reflecting the need for precise heap state or timing conditions typical of use-after-free vulnerability exploitation. The service is network-reachable (AV:N), so physical access is not required, but the combination of mandatory prior authentication, required user interaction, and complex exploitation mechanics substantially limits opportunistic or automated mass exploitation. Default Windows installations expose the Device Association Service, meaning no non-default feature enablement is required, but the three concurrent prerequisites above are the effective gatekeepers. |
| Impact | The CVSS 3.1 vector (AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H, score 7.1) captures a meaningful gap between theoretical and practical exploitability: while the impact triad is maximal, the attacker must already hold a low-privilege account, achieve a complex timing or heap-state condition characteristic of UAF exploitation, and induce user interaction - a trifecta of prerequisites that substantially narrows the realistic threat actor pool. No public exploit code exists, and this CVE does not appear in the CISA KEV catalog, providing no evidence of confirmed in-the-wild exploitation. EPSS data is not available in the provided intelligence. The breadth of affected Windows versions - spanning Server 2012 through Server 2025 and Windows 10/11 across multiple servicing branches - means aggregate unpatched attack surface is large across enterprise fleets, and organizations should incorporate this into standard patch-cycle prioritization rather than treating it as requiring emergency out-of-band response. The metadata 'Denial Of Service' tag is inconsistent with the documented privilege-escalation impact and should not drive incident classification. |
| Exploit ScenarioDerived | An attacker holding a valid low-privilege domain or local account sends crafted network requests to the Device Association Service, exploiting a race condition or heap-grooming sequence to trigger a use-after-free condition and place attacker-controlled data at the freed memory address. The attacker then waits for or socially engineers a legitimate user to perform a device-association action (satisfying UI:R), causing execution to be redirected through the corrupted pointer and elevating the attacker's privileges on the target system. No public proof-of-concept code has been identified at time of analysis. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Sep 09, 2026
Use after free in the Windows Device Association Service enables network-based privilege escalation by low-privilege authenticated attackers across Windows 10, Windows 11, and Windows Server 2012 through 2025. The CVSS 3.1 score of 7.1 accurately reflects meaningful exploitation constraints - high attack complexity, required user interaction, and prior authentication - despite the maximal CIA impact if exploitation succeeds. Microsoft has released patches across all affected product lines; no public exploit code or CISA KEV listing has been identified at time of analysis.
RemediationAI
The primary fix is to apply Microsoft's security update that brings each affected Windows build to or above the patched version for that product line - for example, Windows 10 22H2 to 10.0.19045.7725 or later, Windows 11 24H2 to 10.0.26100.9445 or later, and Windows Server 2025 to 10.0.26100.33438 or later. The complete per-product fixed build list is detailed in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69296 and should be the authoritative reference for patch targeting. If immediate patching is not feasible, a compensating control is to restrict network access to the Device Association Service endpoint via host-based Windows Firewall rules or network segmentation, which reduces the AV:N attack surface; however, this may disrupt legitimate device-pairing and discovery workflows on affected hosts. Administrators should also apply least-privilege principles and audit which low-privilege accounts have network access to device-association-capable endpoints to reduce the PR:L attack surface.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 19 packages in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The Windows Device Association Service (DAS) manages pairing and association between the host system and external devices (Bluetooth, Wi-Fi Direct, etc.) and exposes a network-accessible interface. CWE-416 (Use After Free) arises when a program continues to reference memory after it has been freed, allowing an attacker who can control heap layout to place arbitrary data at the freed address and redirect code execution. UAF exploitation is typically complex - requiring heap grooming, race-condition timing, or specific allocation patterns to reliably land controlled content at the freed pointer - which is consistent with the AC:H CVSS metric. The vulnerability spans a confirmed-by-EUVD broad range of builds: Windows 10 versions 1607 through 22H2, Windows 11 versions 23H2 through 26H1, and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025 including Server Core installations.
Know when Windows 10 1607 gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Network-delivered UAF privilege escalation; AC:H reflects heap-grooming/race complexity; PR:L and UI:R match documented authorized-attacker and user-interaction requirements; full CIA impact on successful exploitation of an EoP flaw.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
2DescriptionCVE.org
Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges over a network.
Executive ViewAI
Windows Device Association Service contains a use-after-free vulnerability affecting Windows 10, 11, and Server 2012-2025 that allows authenticated users with low privileges to escalate to system-level access. This creates a direct path for compromised or malicious internal accounts to gain complete infrastructure control. Every Windows system in your environment represents a potential privilege escalation vector for insiders or attackers using stolen low-privilege credentials.
Apply vendor patch.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.
Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.
More in Windows 10 1607
View allWindows MSHTML component contains a remote code execution vulnerability that allows attackers to craft malicious ActiveX
<p>A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged fi
Windows MSDT (Microsoft Support Diagnostic Tool) allows remote code execution when called via the ms-msdt URL protocol f
The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows
The Windows VBScript engine contains a remote code execution vulnerability in object handling that allows full system co
Windows Print Spooler Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no auth
The Win32k kernel-mode driver in Windows Vista through Windows Server 2016 allows local privilege escalation, exploited
Windows Search Remote Code Execution Vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely explo
Denial of service against HTTP/2 server implementations allows remote unauthenticated attackers to exhaust server resour
Windows Kernel contains a TOCTOU race condition vulnerability allowing local privilege escalation, exploited by the OilR
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in
EUVD-2026-73217
GHSA-7gq6-45m7-rw9q
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB