EUVD-2026-73493
GHSA-j2xp-jw6w-vj4c
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local session required for DFS access; low complexity once authenticated; full C/I/A impact consistent with SYSTEM-level privilege escalation via kernel/privileged component overflow.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Distributed File System (DFS) allows an authorized attacker to elevate privileges locally.
AnalysisAI
Heap-based buffer overflow in the Windows Distributed File System (DFS) component allows a locally authenticated attacker to escalate privileges to SYSTEM-level access on affected Windows clients and servers. The vulnerability spans an exceptionally broad range of Microsoft Windows releases, from Windows 10 version 1607 and Windows Server 2012 through the most current Windows 11 26H1 and Windows Server 2025 builds. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local session on the target Windows machine - the attacker must have the ability to execute code as a low-privileged user (PR:L). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 (High) rating with vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H accurately reflects a local privilege escalation with low attack complexity and no user interaction required once the attacker has a local foothold. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the Microsoft-released patches via Windows Update or WSUS to bring each product line to or above the fixed build numbers: Windows 11 24H2 to 10.0.26100.9445, Windows 11 25H2 to 10.0.26200.9445, Windows 11 26H1 to 10.0.28000.2954, Windows 11 23H2 to 10.0.22631.7582, Windows 10 22H2 to 10.0.19045.7725, Windows 10 21H2 to 10.0.19044.7725, Windows 10 1607 and Server 2016 to 10.0.14393.9512, Windows 10 1809 and Server 2019 to 10.0.17763.9245, Server 2022 to 10.0.20348.5622, Server 2025 to 10.0.26100.33438, Server 2012 R2 to 6.3.9600.23397, and Server 2012 to 6.2.9200.26349. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and inventory all affected Windows systems (Windows 10 version 1607 and later, Windows 11 all versions, Windows Server 2012-2025) using your endpoint management or SIEM tools and verify current patch levels. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today