Vulnerability Monitor

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CVE-2016-5247


The BIOS for Lenovo ThinkCentre E93, M6500t/s, M6600, M6600q, M6600t/s, M73p, M800, M83, M8500t/s, M8600t/s, M900, M93, and M93P devices; ThinkServer RQ940, RS140, TS140, TS240, TS440, and TS540 devices; and ThinkStation E32, P300, and P310 devices might allow local users or physically proximate attackers to bypass the Secure Boot protection mechanism by leveraging an AMI test key.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.8, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 23 products from lenovo, from lenovo, from lenovo and 20 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.


Published

2016-09-22T15:59:00.147

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-254

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System lenovo bios - Yes
Hardware lenovo thinkcentre_e93 - No
Hardware lenovo thinkcentre_m6500t\/s - No
Hardware lenovo thinkcentre_m6600 - No
Hardware lenovo thinkcentre_m6600q - No
Hardware lenovo thinkcentre_m6600t\/s - No
Hardware lenovo thinkcentre_m73p - No
Hardware lenovo thinkcentre_m800 - No
Hardware lenovo thinkcentre_m83 - No
Hardware lenovo thinkcentre_m8500t\/s - No
Hardware lenovo thinkcentre_m8600t\/s - No
Hardware lenovo thinkcentre_m900 - No
Hardware lenovo thinkcentre_m93 - No
Hardware lenovo thinkcentre_m93p - No
Hardware lenovo thinkserver_rq940 - No
Hardware lenovo thinkserver_rs140 - No
Hardware lenovo thinkserver_ts140 - No
Hardware lenovo thinkserver_ts240 - No
Hardware lenovo thinkserver_ts440 - No
Hardware lenovo thinkserver_ts540 - No
Hardware lenovo thinkstation_e32 - No
Hardware lenovo thinkstation_p300 - No
Hardware lenovo thinkstation_p310 - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For lenovo's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.