How severe is CVE-2018-20958?

CVE-2018-20958 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 high, integrity none, and availability none.

Is CVE-2018-20958 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20958?

CVE-2018-20958 affects Tapplock Tapplock Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20958?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-20958 published?

CVE-2018-20958 was published on 2019-08-07 and last updated on 2026-06-17.

CVE-2018-20958

CVE-2018-20958 is a medium-severity vulnerability in Tapplock Tapplock 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Tapplock Tapplock Firmware
Published: 2019-08-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-20958?: 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 severe is CVE-2018-20958?: CVE-2018-20958 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 high, integrity none, and availability none.
Is CVE-2018-20958 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20958?: CVE-2018-20958 affects Tapplock Tapplock Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20958?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20958 published?: CVE-2018-20958 was published on 2019-08-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tapplock:tapplock_firmware:*:*:*:*:*:*:*:*

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