CVE-2021-44905: Incorrect permissions in the Bluetooth Services in the Fortessa FTBTLD Smart Lock as of 12-13-2022 allows a re

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HIGH 8.2REMOTEMITIGATE

CVE-2021-44905 is a high-severity flaw (CVSS 8.2) affecting fortessa ftbtld firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incorrect permissions in the Bluetooth Services in the Fortessa FTBTLD Smart Lock as of 12-13-2022 allows a remote attacker to disable the lock via an unauthenticated edit to the lock name.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-276
Published	2022-03-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cef

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-03-25 21:15 UTCPublished CVE record published
2026-06-17 04:12 UTCUpdated Record last modified

cef fortessa ftbtld firmware MITIGATE

Affected: >= 12-13-2022

Fixed in: no fixed release known

Safe to downgrade to: a release before 12-13-2022

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2021-44905?

fortessa ftbtld firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-44905 being exploited?

CVE-2021-44905 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-2021-44905 affect?

CVE-2021-44905 affects fortessa ftbtld firmware. Severity is high (CVSS 8.2). Incorrect permissions in the Bluetooth Services in the Fortessa FTBTLD Smart Lock as of 12-13-2022 allows a remote attacker to disable the lock via an unauthenticated edit to the lock name.

How urgent is CVE-2021-44905?

Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Bluetooth vulnerabilities

References

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