CVE-2020-8335

MediumCVSS 6.8/10Last modified Jun 17, 2026

Description

The BIOS tamper detection mechanism was not triggered in Lenovo ThinkPad A285, BIOS versions up to r0xuj70w; A485, BIOS versions up to r0wuj65w; T495 BIOS versions up to r12uj55w; T495s/X395, BIOS versions up to r13uj47w, while the emergency-reset button is pressed which may allow for unauthorized access.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

VendorProductVersions
LenovoThinkPad A285 BIOS>= unspecified, < r0xuj70w
LenovoThinkPad A485 BIOS>= unspecified, < r0wuj65w
LenovoThinkPad T495 BIOS>= unspecified, < r12uj55w
LenovoThinkPad T495s/X395 BIOS>= unspecified, < r13uj47w

References

Timeline

Published
Sep 1, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-83366.8Lenovo implemented Intel CSME Anti-rollback ARB protections on some ThinkPad models to prevent roll back of CSME Firmware in flash.CVE-2020-83376.7An unquoted search path vulnerability was reported in versions prior to 1.0.83.0 of the Synaptics Smart Audio UWP app associated with the DCCVE-2020-83387.8A DLL search path vulnerability was reported in Lenovo Diagnostics prior to version 4.35.4 that could allow a user with local access to execCVE-2020-83396.1A cross-site scripting inclusion (XSSI) vulnerability was reported in the legacy IBM BladeCenter Advanced Management Module (AMM) web interfCVE-2020-83406.1A cross-site scripting (XSS) vulnerability was discovered in the legacy IBM and Lenovo System x IMM2 (Integrated Management Module 2), priorCVE-2020-83412.4In Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this provides sufficient protection, an additionaCVE-2020-83427.0A race condition vulnerability was reported in Lenovo System Update prior to version 5.07.0106 that could allow escalation of privilege.CVE-2020-83457.8A DLL search path vulnerability was reported in the Lenovo HardwareScan Plugin for the Lenovo Vantage hardware scan feature prior to versionCVE-2020-83465.5A denial of service vulnerability was reported in the Lenovo Vantage component called Lenovo System Interface Foundation prior to version 1.CVE-2020-83476.1A reflective cross-site scripting (XSS) vulnerability was reported in Lenovo Enterprise Network Disk prior to version 6.1 patch 6 hotfix 4 tCVE-2020-83486.1A DOM-based cross-site scripting (XSS) vulnerability was reported in Lenovo Enterprise Network Disk prior to version 6.1 patch 6 hotfix 4 thCVE-2020-83499.8An internal security review has identified an unauthenticated remote code execution vulnerability in Cloud Networking Operating System (CNOS
CVE-2020-8335: Medium severity, CVSS 6.8 | Vulnix