Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain low-privileged local account
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DeliveryDrop exploit binary on host
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ExploitTrigger UAF in Graphics Component
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ExecutionReclaim freed object with controlled data
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PersistHijack execution to SYSTEM
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ImpactDisable defenses and persist
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 | Attacker must already possess the ability to execute code locally on the target Windows host under any authenticated low-privileged user account (PR:L, AV:L); no user interaction is required (UI:N) and attack complexity is low (AC:L), meaning no race window or unusual environmental tuning is needed. Limiting factors: remote network exploitation is not possible directly - the bug requires a local code-execution primitive first - and only Windows systems running the vulnerable Graphics Component build are affected; non-Windows hosts and fully patched systems are out of scope. |
| Impact | The CVSS vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H indicates local attack vector, low complexity, low-privileged authentication required, and no user interaction - a typical profile for a post-compromise privilege escalation. EPSS data was not provided, and the vulnerability is not in CISA KEV, indicating no confirmed active exploitation at this time. Microsoft Graphics Component UAFs have historically been attractive secondary-stage exploits paired with browser or document RCEs and have appeared in past KEV listings, so although there is no public PoC referenced here, defenders should treat this as a credible candidate for inclusion in exploit chains. Key data gap: no EPSS score, no confirmed KB number in the provided references, and tag-asserted 'Denial Of Service' impact appears inconsistent with the CIA:H privilege-escalation framing - verify the impact class with Microsoft's advisory before final triage. |
| Exploit ScenarioDerived | An attacker who has already obtained a low-privileged foothold on a Windows host - for example via a phishing-delivered payload, a compromised user account, or a stolen RDP credential - executes a crafted local program that triggers the use-after-free in the Graphics Component, grooms the kernel/user heap to control the freed object, and pivots to SYSTEM-level code execution. From there the attacker disables EDR, harvests credentials from LSASS, and laterally moves. No public exploit identified at time of analysis, but historically similar Microsoft Graphics UAFs have been weaponized within months of disclosure. |
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Alert meAnalysisAIv1 – Jun 09, 2026
Local privilege escalation in the Microsoft Graphics Component allows an authenticated low-privileged attacker to gain elevated rights via a use-after-free memory corruption flaw (CWE-416). The issue carries a CVSS 7.8 (High) rating with full confidentiality, integrity, and availability impact on the affected host. No public exploit identified at time of analysis, and the vulnerability is not currently listed in CISA KEV.
RemediationAI
Patch available per vendor advisory - apply the Microsoft security update referenced at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42986 as soon as your patch cycle permits, prioritizing multi-user systems (RDP/Citrix hosts, shared workstations, developer build servers) where low-privileged local accounts can directly stage the exploit. No specific fix version string was supplied in the input, so confirm the exact KB and Windows build number directly from MSRC before deployment. Until patched, reduce blast radius by enforcing least-privilege on interactive logon accounts, removing local-logon rights from service accounts where feasible, enabling Microsoft Defender Exploit Guard / HVCI to constrain kernel exploitation primitives, and restricting interactive sessions on sensitive servers - note that HVCI can break older drivers and disabling interactive logon can break legitimate admin workflows.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 33 packages in microsoft, euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The Microsoft Graphics Component is a shared Windows subsystem responsible for rendering, font handling, and image/graphics object management used by GDI, DirectX, and related kernel/user-mode graphics paths. CWE-416 (Use After Free) indicates that a graphics object's memory is freed while a dangling reference remains reachable; subsequent dereference of that pointer allows an attacker who controls the freed slot's contents to corrupt structures and hijack execution flow. Because graphics objects are commonly handled by privileged components on Windows, controlled reuse of the freed allocation is a classic primitive for local elevation to SYSTEM or higher integrity.
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Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
DescriptionCVE.org
Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.
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.
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
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EUVD-2026-35737
GHSA-w2x7-5hqr-63mv
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB