CVE-2026-6387

Local Privilege Escalation via Authentication Bypass in Lenovo System Update

Published Aug 13, 2026 CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
Description
A potential authentication bypass vulnerability was reported in Lenovo System Update that could allow a local authenticated user to execute arbitrary code with elevated privileges.

Remediation

Vendor Solution

Update Lenovo System Update to version 5.08.04.85 or later.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Local Privilege Escalation via Authentication Bypass in Lenovo System Update
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A potential authentication bypass vulnerability was reported in Lenovo System Update that could allow a local authenticated user to execute arbitrary code with elevated privileges.
First Time appeared Lenovo
Lenovo system Update
Weaknesses CWE-290
CPEs cpe:2.3:a:lenovo:system_update:*:*:windows:*:*:*:*:*
Vendors & Products Lenovo
Lenovo system Update
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
lenovo
Published
Updated
Aug 13, 2026, 4:07 PM
Reserved
Apr 15, 2026, 7:22 PM
Status
Awaiting Analysis
Published
Aug 13, 2026, 3:19 PM
Modified
Oct 24, 2026, 4:10 PM