EUVD-2026-73400
GHSA-f36p-q8r4-m2qp
Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NTFS reachable via SMB warrants AV:N; PR:L reflects required authenticated access; UI:R per vendor CVSS; SYSTEM-level privilege escalation justifies C:H/I:H/A:H.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Stack-based buffer overflow in Windows NTFS (CWE-121) enables a low-privileged network-authenticated attacker to achieve full privilege escalation on affected Microsoft Windows systems, potentially reaching SYSTEM-level access. The vulnerability spans a very wide range of products from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025, and Microsoft has confirmed the issue and released patched 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 a valid low-privileged Windows account (domain or local) with network access to an SMB-exposed NTFS volume on the target system, as indicated by the PR:L CVSS metric. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.0 score (AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H) reflects a serious network-reachable privilege escalation, but two modifiers keep it below the highest tier: PR:L requires a valid low-privileged Windows credential, and UI:R indicates some form of user interaction must occur. … 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 Microsoft's cumulative security update for the relevant Windows version as documented in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68834. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct a complete inventory of Windows Server (2012, 2012 R2, 2016, 2019, 2022, 2025) and Windows 11 systems (all versions through 26H1) in your environment; cross-reference against vulnerability management tools to identify unpatched endpoints. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
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
Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today