CVE-2016-6257

What it is

The firmware in Lenovo Ultraslim dongles, as used with Lenovo Liteon SK-8861, Ultraslim Wireless, and Silver Silk keyboards and Liteon ZTM600 and Ultraslim Wireless mice, does not enforce incrementing AES counters, which allows remote attackers to inject encrypted keyboard input into the system by leveraging proximity to the dongle, aka a "KeyJack injection attack."

At a glance

Exploitability

Can be exploited from the same network segment without logging in. High risk of data tampering.

Exploit odds

1.0% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2016-08-02 14:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:50 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.0% in the next 30 days (EPSS).
• Severity: 6.5 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2016-08-02 14:59 UTC

Last modified

2026-06-17 00:50 UTC

Exploit probability

1.0% · EPSS, next 30 days

Weakness

CWE-310

Record status

Modified

Affected

• Amazonbasics Firmware
• Dell km714 Firmware ≤ 012.005.00028
• Dell km632 Firmware
• Logitech Unifying Firmware ≤ 012.005.00028
• Logitech Unifying Firmware ≤ 024.003.00027
• Lenovo Ultraslim Firmware

Attack profile CVSS 3.1 · 6.5

Attack vector

Adjacent network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Is it in your code?

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