What is CVE-2018-20957?

CVE-2018-20957 is a high-severity vulnerability in Tapplock One\+, classified under Improper Access Control. CVSS score: 8.8/10. Published 2019-08-08.

How severe is CVE-2018-20957?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Tapplock One\+

CVE-2018-20957

The Bluetooth Low Energy (BLE) subsystem on Tapplock devices before 2018-06-12 allows replay attacks.

Published 2019-08-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

tapplock.com/notice/20180612/ (Vendor Advisory)
www.pentestpartners.com/security-blog/totally-pwning-the-tapplock-smart-lock/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-20957?: CVE-2018-20957 is a high-severity vulnerability in Tapplock One\+, classified under Improper Access Control. CVSS score: 8.8/10. Published 2019-08-08.
How severe is CVE-2018-20957?: High severity. CVSS v3 base score is 8.8 out of 10.