EUVD-2026-73101
GHSA-4jvf-hfmc-3w57
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack requiring low-privilege account; AC:L because no race or special config needed; full C/I/A from code execution in elevated service context.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to execute code locally.
AnalysisAI
Heap-based buffer overflow in the Windows Remote Access Connection Manager (RASMAN) service enables local code execution with full system impact on unpatched Windows 10, 11, and Server 2012-2025 systems. Any authenticated local user with low privileges can trigger the CWE-122 overflow with no user interaction, achieving high confidentiality, integrity, and availability impact - characteristic of a local privilege escalation to SYSTEM or service-level code execution. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local session with at least low-privilege access to the target Windows system - this is the primary limiting factor. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately characterizes this as a local privilege escalation requiring only a low-privileged authenticated session - no remote access, no social engineering, and no configuration preconditions are stated. … 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 via Windows Update or WSUS targeting the fixed build for each affected version: Windows 10 1809/Server 2019 to 10.0.17763.9245, Windows 10 21H2 to 10.0.19044.7725, Windows 10 22H2 to 10.0.19045.7725, Windows 11 23H2 to 10.0.22631.7582, Windows 11 24H2/Server 2025 to 10.0.26100.9445 (or 10.0.26100.33438 for Server 2025 where applicable), Windows 11 26H1 to 10.0.28000.2954, Server 2016 to 10.0.14393.9512, Server 2022 to 10.0.20348.5622, Server 2012/2012R2 to the respective 6.x builds noted above. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Windows 10, 11, and Windows Server systems (2012-2025) and coordinate with IT operations to prepare patch deployment via Microsoft Update or WSUS. …
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Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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