PatchTheCVECVE-2018-20958: The Bluetooth Low Energy (BLE) subsystem on Tapplock devices before 2018-06-12 relies on Key1 and SerialNo for
CVE-2018-20958 is a medium-severity flaw (CVSS 6.5) affecting tapplock firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Bluetooth Low Energy (BLE) subsystem on Tapplock devices before 2018-06-12 relies on Key1 and SerialNo for unlock operations; however, these are derived from the MAC address, which is broadcasted by the device.
Why this priority
- No elevated risk signals yet
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 | 0.5% (top 57%) |
| CISA exploited list | No |
| Weakness | CWE-200 |
| Published | 2019-08-07 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
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-2018-20958?
tapplock firmware: upgrade to 2018-06-12. Exact commands for each OS are on this page.
Is CVE-2018-20958 being exploited?
CVE-2018-20958 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-2018-20958 affect?
CVE-2018-20958 affects tapplock firmware. Severity is medium (CVSS 6.5). The Bluetooth Low Energy (BLE) subsystem on Tapplock devices before 2018-06-12 relies on Key1 and SerialNo for unlock operations; however, these are derived from the MAC address, which is broadcasted by the device.
How urgent is CVE-2018-20958?
Priority 33/100. No elevated risk signals yet.