CVE-2026-6387: CWE-290: Authentication Bypass by Spoofing in Lenovo System Update
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.
AI Analysis
Technical Summary
This vulnerability in Lenovo System Update involves an authentication bypass that could enable a local authenticated user to escalate privileges and execute arbitrary code. The CVSS 4.0 base score is 7.3, indicating high severity, with attack vector local, low attack complexity, and partial required privileges. The vulnerability does not require user interaction and has high impact on confidentiality, integrity, and availability. No official remediation or patch information is currently available.
Potential Impact
A local authenticated user could bypass authentication controls and execute arbitrary code with elevated privileges, potentially compromising system integrity and confidentiality. This could lead to unauthorized actions on the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the Lenovo vendor advisory for current remediation guidance. Until a fix is available, restrict local access to trusted users only and monitor for suspicious activity related to Lenovo System Update.
CVE-2026-6387: CWE-290: Authentication Bypass by Spoofing in Lenovo System Update
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.
CVSS v4.0
Score 7.3high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Lenovo System Update involves an authentication bypass that could enable a local authenticated user to escalate privileges and execute arbitrary code. The CVSS 4.0 base score is 7.3, indicating high severity, with attack vector local, low attack complexity, and partial required privileges. The vulnerability does not require user interaction and has high impact on confidentiality, integrity, and availability. No official remediation or patch information is currently available.
Potential Impact
A local authenticated user could bypass authentication controls and execute arbitrary code with elevated privileges, potentially compromising system integrity and confidentiality. This could lead to unauthorized actions on the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the Lenovo vendor advisory for current remediation guidance. Until a fix is available, restrict local access to trusted users only and monitor for suspicious activity related to Lenovo System Update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- lenovo
- Date Reserved
- 2026-04-15T19:22:25.659Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7ddec8bf8831d5395d0010
Added to database: 08/13/2026, 15:12:08 UTC
Last enriched: 08/13/2026, 15:41:19 UTC
Last updated: 08/13/2026, 17:53:01 UTC
Views: 3
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