What is CVE-2026-77827?

CVE-2026-77827 is a high-severity vulnerability in Maono Link, classified under Unquoted Search Path or Element. CVSS score: 7.1/10. Published 2026-09-08.

How severe is CVE-2026-77827?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Maono Link

CVE-2026-77827

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.

Published 2026-09-08 · last modified 2026-09-14.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (4.9th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Maono Link

Weakness classification (CWE)

CWE-428 — Unquoted Search Path or Element

References

9119a7d8-5eab-497f-8521-727c672e3725 (vendor-advisory)
9119a7d8-5eab-497f-8521-727c672e3725 (vdb-entry)
9119a7d8-5eab-497f-8521-727c672e3725 (third-party-advisory)

Frequently asked questions

What is CVE-2026-77827?: CVE-2026-77827 is a high-severity vulnerability in Maono Link, classified under Unquoted Search Path or Element. CVSS score: 7.1/10. Published 2026-09-08.
How severe is CVE-2026-77827?: High severity. CVSS v3 base score is 7.1 out of 10.