CVE-2016-6257: The firmware in Lenovo Ultraslim dongles, as used with Lenovo Liteon SK-8861, Ultraslim Wireless, and Silver S

Q: How do I fix CVE-2016-6257?

firmware: mitigate or apply the listed mitigation; km714 firmware: upgrade to newer than 012.005.00028; km632 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2016-6257 being exploited?

CVE-2016-6257 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2016-6257 affect?

CVE-2016-6257 affects firmware, km714 firmware, km632 firmware. Severity is medium (CVSS 6.5). 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 attac

Q: How urgent is CVE-2016-6257?

Priority 44/100. On your watchlist

This month

MEDIUM 6.5WATCHLISTMITIGATEUPGRADEMITIGATE

CVE-2016-6257 is a medium-severity flaw (CVSS 6.5) affecting firmware, km714 firmware, km632 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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."

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-310
Published	2016-08-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: amazonbasics · dell · lenovo · logitech

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2016-08-02 14:59 UTCPublished CVE record published
2026-06-17 00:50 UTCUpdated Record last modified

amazonbasics firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

dell km714 firmware UPGRADE

Affected: <= 012.005.00028

Fixed in: newer than 012.005.00028

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

dell km632 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

logitech unifying firmware UPGRADE

Affected: <= 012.005.00028 · <= 024.003.00027

Fixed in: newer than 024.003.00027

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

lenovo ultraslim firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2016-6257?

firmware: mitigate or apply the listed mitigation; km714 firmware: upgrade to newer than 012.005.00028; km632 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-6257 being exploited?

CVE-2016-6257 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-6257 affect?

CVE-2016-6257 affects firmware, km714 firmware, km632 firmware. Severity is medium (CVSS 6.5). 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 attac

How urgent is CVE-2016-6257?

Priority 44/100. On your watchlist

Software pages

Dell vulnerabilities · Lenovo vulnerabilities

Related CVEs

CVE-2014-8657 MEDIUM 5.0 DOWNGRADE MITIGATE The Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOS
CVE-2014-8656 HIGH 10.0 DOWNGRADE MITIGATE The Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOS
CVE-2014-8655 MEDIUM 5.0 DOWNGRADE MITIGATE The Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOS
CVE-2014-8654 MEDIUM 6.8 DOWNGRADE MITIGATE Multiple cross-site request forgery (CSRF) vulnerabilities in Compal Broadband Networks (CBN) CH6640E and CG66
CVE-2014-8653 MEDIUM 4.3 MITIGATE MITIGATE Cross-site scripting (XSS) vulnerability in Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gatew

References

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