HOMEVULNERABILITIESCVE-2016-6257
MEDIUM

CVE-2016-6257

CWE-310Published: August 2, 2016· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

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."

NVD Source

Technical Analysis

CVE-2016-6257 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

amazonbasics3 product(s)
firmwareusb donglewireless keyboard
Dell6 product(s)
km714 firmwarekm714 donglekm714 wireless keyboardkm632 firmwarekm632 donglekm632 wireless keyboard
Lenovo3 product(s)
ultraslim firmwareultraslim dongleultraslim wireless keyboard
logitech2 product(s)
unifying firmwareunifying dongle
Source: NVD CPE · 14 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/92179
ADVISORYhttps://github.com/BastilleResearch/keyjack/blob/master/doc/advisories/bastille-13.lenovo-ultraslim.public.txt
ADVISORYhttps://support.lenovo.com/product_security/len_7267
ADVISORYhttps://www.bastille.net/research/vulnerabilities/keyjack
ADVISORYhttp://www.securityfocus.com/bid/92179
ADVISORYhttps://github.com/BastilleResearch/keyjack/blob/master/doc/advisories/bastille-13.lenovo-ultraslim.public.txt
ADVISORYhttps://support.lenovo.com/product_security/len_7267
ADVISORYhttps://www.bastille.net/research/vulnerabilities/keyjack

All References (8)

→
http://www.securityfocus.com/bid/92179Third Party Advisory · VDB Entry
→
https://github.com/BastilleResearch/keyjack/blob/master/doc/advisories/bastille-13.lenovo-ultraslim.public.txtThird Party Advisory
→
https://support.lenovo.com/product_security/len_7267Vendor Advisory
→
https://www.bastille.net/research/vulnerabilities/keyjackThird Party Advisory
→
http://www.securityfocus.com/bid/92179Third Party Advisory · VDB Entry
→
https://github.com/BastilleResearch/keyjack/blob/master/doc/advisories/bastille-13.lenovo-ultraslim.public.txtThird Party Advisory
→
https://support.lenovo.com/product_security/len_7267Vendor Advisory
→
https://www.bastille.net/research/vulnerabilities/keyjackThird Party Advisory

Quick Facts

CVE IDCVE-2016-6257
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-310
CISA KEVNo
Affected4 vendor(s)
PublishedAug 2, 2016

Related CVEs (CWE-310)

CVE-2012-2405
10.0
CVE-2009-1473
10.0
CVE-2009-1477
10.0
CVE-2008-7252
10.0
CVE-2007-6521
10.0
CVE-2013-0137
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-6257 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2016-6257·NVD