The firmware in Lenovo Ultraslim dongles, as used with Lenovo Liteon SK-8861, Ultraslim Wireless, and Silver Silk keyboards and Liteon ZTM60
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."
- Published
- Aug 2, 2016
- Updated
- Jun 16, 2026
- EPSS
- 1.0% · 62th percentile
- CWE
- CWE-310
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Report tools
Action score
26
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.0%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| lenovo | ultraslim firmware | cpe:2.3:o:lenovo:ultraslim_firmware |
| lenovo | ultraslim dongle | cpe:2.3:h:lenovo:ultraslim_dongle |
| lenovo | ultraslim wireless keyboard | cpe:2.3:h:lenovo:ultraslim_wireless_keyboard |
| amazonbasics | firmware | cpe:2.3:o:amazonbasics:firmware |
| amazonbasics | usb dongle | cpe:2.3:h:amazonbasics:usb_dongle |
| amazonbasics | wireless keyboard | cpe:2.3:h:amazonbasics:wireless_keyboard |
| dell | km714 firmware | cpe:2.3:o:dell:km714_firmware |
| dell | km714 dongle | cpe:2.3:h:dell:km714_dongle |
| dell | km714 wireless keyboard | cpe:2.3:h:dell:km714_wireless_keyboard |
| dell | km632 firmware | cpe:2.3:o:dell:km632_firmware |
| dell | km632 dongle | cpe:2.3:h:dell:km632_dongle |
| dell | km632 wireless keyboard | cpe:2.3:h:dell:km632_wireless_keyboard |
and 2 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- amazonbasics firmwareall versions
- dell km632 firmwareall versions
- dell km714 firmwareup to 012.005.00028 inclusive
- lenovo ultraslim firmwareall versions
- logitech unifying firmwareup to 012.005.00028 inclusive
- logitech unifying firmwareup to 024.003.00027 inclusive
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-310 · Cryptographic IssuesCVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- www.securityfocus.com/bid/92179
- github.com/BastilleResearch/keyjack/blob/master/doc/advisories/bastille-13.lenovo-ultraslim.public.txt
- support.lenovo.com/product_security/len_7267
- www.bastille.net/research/vulnerabilities/keyjack
Vendor advisories and official records. Exploit/PoC links are deliberately left out.