CVE-2026-1636

Potential DLL Hijacking in Lenovo Service Bridge Enables Local Privilege Escalation

Published Apr 15, 2026 CVSS 4.0 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
A potential DLL hijacking vulnerability was reported in Lenovo Service Bridge that, under certain conditions, could allow a local authenticated user to execute code with elevated privileges.

Remediation

Vendor Solution

Upgrade to the Lenovo Service Bridge version 5.0.2.20 or later. Lenovo Service Bridge is updated automatically.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Title Potential DLL Hijacking in Lenovo Service Bridge Enables Local Privilege Escalation
Type Values Removed Values Added
Description A potential DLL hijacking vulnerability was reported in Lenovo Service Bridge that, under certain conditions, could allow a local authenticated user to execute code with elevated privileges.
First Time appeared Lenovo
Lenovo service Bridge
Weaknesses CWE-427
CPEs cpe:2.3:a:lenovo:service_bridge:*:*:*:*:*:*:*:*
Vendors & Products Lenovo
Lenovo service Bridge
References
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 5.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
lenovo
Published
Updated
Apr 16, 2026, 3:55 AM
Reserved
Jan 29, 2026, 4:42 PM
Status
Analyzed
Published
Apr 15, 2026, 1:16 PM
Modified
Oct 26, 2026, 9:10 PM