EUVD-2026-56645
GHSA-gxf6-vxqf-pv2c
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local-only vector confirmed by description; low privileges sufficient; no integrity or availability impact from read-only memory disclosure.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Buffer over-read in Windows Wired AutoConfig Service allows an authorized attacker to disclose information locally.
AnalysisAI
Windows Wired AutoConfig Service (dot3svc) exposes a buffer over-read (CWE-126) that allows a locally authenticated, low-privileged attacker to read beyond allocated memory boundaries and disclose potentially sensitive information from adjacent memory. Affected scope spans virtually the entire modern Windows ecosystem - from Windows 10 1607 and Windows Server 2012 through Windows 11 26H1 and Windows Server 2025 - making patch surface broad despite the local-only attack vector. …
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 already-established local user session on the target Windows host with at minimum standard (low-privilege) user rights - consistent with CVSS PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 5.5 Medium score is grounded in realistic metrics: AV:L (requires physical or already-established local session), AC:L (no complex preconditions once local), PR:L (standard user privilege suffices), and C:H (high confidentiality impact from memory disclosure). … 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 vendor-released patches distributed through Microsoft's standard Patch Tuesday update channel, targeting the specific fixed build numbers listed per Windows version: 10.0.14393.9418 for Windows 10 1607 and Server 2016, 10.0.17763.9115 for Windows 10 1809 and Server 2019, 10.0.19044.7663 or 10.0.19045.7663 for Windows 10 21H2 and 22H2, 10.0.20348.5499 for Server 2022, 10.0.22631.7517 for Windows 11 23H2, 10.0.26100.9168 or 10.0.26100.33296 for Windows 11 24H2/25H2 and Server 2025, 10.0.28000.2704 for Windows 11 26H1, 6.2.9200.26279 for Server 2012, and 6.3.9600.23337 for Server 2012 R2. … Detailed patch versions, workarounds, and compensating controls in full report. |
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 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
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
Windows Internet Shortcut Files (.url) contain an external control vulnerability (CVE-2025-33053, CVSS 8.8) that enables
Elevation of privilege in the Windows Win32k kernel-mode driver allows a local, low-privileged attacker to escalate to S
Same weakness CWE-126 – Buffer Over-read
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today