CVE-2016-6257
CVE-2016-6257 is a medium-severity vulnerability in Amazonbasics Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 3.3
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-310
- Affected product: Amazonbasics Firmware
- Published:
- Last modified:
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."
Frequently asked questions
- What is CVE-2016-6257?
- 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."
- How severe is CVE-2016-6257?
- CVE-2016-6257 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2016-6257 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-6257?
- CVE-2016-6257 primarily affects Amazonbasics Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2016-6257?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2016-6257 published?
- CVE-2016-6257 was published on 2016-08-02 and last updated on 2026-06-17.
References
- http://www.securityfocus.com/bid/92179
- https://github.com/BastilleResearch/keyjack/blob/master/doc/advisories/bastille-13.lenovo-ultraslim.public.txt
- https://support.lenovo.com/product_security/len_7267
- https://www.bastille.net/research/vulnerabilities/keyjack
Affected products (5)
- cpe:2.3:o:amazonbasics:firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:dell:km714_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:dell:km632_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:logitech:unifying_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:lenovo:ultraslim_firmware:-:*:*:*:*:*:*:*
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