Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local standard user writes to service directory (PR:L/AV:L/AC:L); scope changes to elevated service context (S:C) with full C:H/I:H; no availability impact described.
Primary rating from Vendor (9119a7d8-5eab-497f-8521-727c672e3725).
CVSS VectorVendor: 9119a7d8-5eab-497f-8521-727c672e3725
Lifecycle Timeline
4DescriptionCVE.org
Maono Link 3.8.13 MaonoAiServices Windows service allows local privilege escalation for a standard user account via improper write privileges in 'C:\ProgramData\Maono'. Fixed in 4.0.80.
AnalysisAI
Local privilege escalation in Maono Link 3.8.13 on Windows enables any standard user account to gain elevated service-level privileges by writing a malicious payload to C:\ProgramData\Maono. The MaonoAiServices Windows service runs with elevated OS privileges while leaving its data directory writable by unprivileged local users - a classic insecure service directory permission pattern (CWE-428). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an existing local standard (non-admin) user account on a Windows system with Maono Link version prior to 4.0.80 installed and the MaonoAiServices service active. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.4 (AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N) accurately reflects a low-complexity local attack requiring only a standard user account and no user interaction, yielding high confidentiality and integrity impact. … 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 | Upgrade Maono Link to version 4.0.80 or later; this is a vendor-released patch per CSAF advisory VA-26-251-01. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all systems running Maono Link 3.8.13 and assess exposure to standard user accounts. …
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Same weakness CWE-428 – Unquoted Search Path or Element
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-74191
GHSA-gx86-6f2h-rhf6