CVE-2026-89057
Received Received - Intake

Authentication Bypass in Lenovo Tablet Firmware

Vulnerability report for CVE-2026-89057, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-16

Last updated on: 2026-10-16

Assigner: Lenovo Group Ltd.

Description

A potential authentication bypass vulnerability was reported in some Lenovo tablets that could allow a user with physical access to gain unauthorized device access.

CVSS Scores

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Meta Information

Published
2026-10-16
Last Modified
2026-10-16
Generated
2026-10-16
AI Q&A
2026-10-16
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 31 associated CPEs
Vendor Product Version / Range
Lenovo Idea Tab Pro (TB373FU) 0
Lenovo Idea Tab/ Lenovo Tab K11 Gen 2 (TB336FU) 0
Lenovo Idea Tab/ Lenovo Tab K11 Gen 2 (TB336FU/TB336ZU) 0
Lenovo Idea Tab/ Lenovo Tab K11 Gen 2 (TB336ZU) 0
Lenovo Legion Tab (8.8", 3) (TB321FU) 0
Lenovo Tab M11 (TB330FU) 0
Lenovo Tab M11 (TB330FU/TB330XU) 0
Lenovo Tab M11 (TB330XU) 0
Lenovo Tab Extreme (TB570FU) 0
Lenovo Tab Extreme (TB570ZU) 0
Lenovo Tab Extreme (TB570ZU/TB570FU) 0
Lenovo Tab K11 (TB330FUP) 0
Lenovo Tab K11 (TB330XUP) 0
Lenovo Tab K11 Plus (TB352FU) 0
Lenovo Tab K11 Plus (TB352XU) 0
Lenovo Tab K11 Plus LTE ROW (TB352XU) 0
Lenovo Tab K11 Plus WIFI ROW: TB352FU 0
Lenovo Tab M10 5G (TB360ZU) 0
Lenovo Tab K9 (TB305FU) 0
Lenovo Tab K9 (TB305XU) 0
Lenovo Tab One (TB305FU) 0
Lenovo Tab One (TB305XU) 0
Lenovo Tab P12 (TB370FU) 0
Lenovo Tab P12 (TB370FU/TB372FU) 0
Lenovo Tab P12 (TB372FU) 0
Lenovo Tab Plus (TB351FU) 0
Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case (TB311FU) 0
Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case (TB311FU/TB311XU) 0
Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case (TB311XU) 0
Lenovo Yoga Tab (TB710FU) 0
Lenovo Yoga Tab Plus (TB520FU) 0

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
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CWE ID Description
CWE-288 The product requires authentication, but the product has an alternate path or channel that does not require authentication.

Attack-Flow Graph

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Executive Summary

This vulnerability is an authentication bypass in certain Lenovo tablets that could allow a user with physical access to gain unauthorized access to the device without proper authentication.

Detection Guidance

This vulnerability requires physical access to exploit, so network-based detection is limited. Focus on monitoring unauthorized physical access to affected Lenovo tablets. Check device logs for unusual authentication attempts or access patterns.

Impact Analysis

An attacker with physical access could bypass security measures and gain control of the device, potentially accessing sensitive data, installing malware, or using the device for malicious purposes.

Compliance Impact

This vulnerability could allow unauthorized physical access to devices, potentially compromising sensitive data stored on them. This may impact compliance with regulations like GDPR and HIPAA, which require strict access controls and protection of personal or health information.

Mitigation Strategies

Since this vulnerability requires physical access to exploit, ensure physical security of affected Lenovo tablets. Disable unnecessary features, apply Lenovo's official security updates if available, and monitor for unauthorized access attempts.

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