CVE-2023-42144: Cleartext Transmission during initial setup in Shelly TRV 20220811-15234 v.2.1.8 allows a local attacker to ob

Routine

MEDIUM 5.5MITIGATE

CVE-2023-42144 is a medium-severity flaw (CVSS 5.5) affecting trv firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cleartext Transmission during initial setup in Shelly TRV 20220811-15234 v.2.1.8 allows a local attacker to obtain the Wi-Fi password.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 99%)
CISA exploited list	No
Weakness	CWE-319
Published	2024-01-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: shelly

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

Am I affected?

Timeline

2024-01-23 20:15 UTCPublished CVE record published
2026-06-17 06:23 UTCUpdated Record last modified

shelly trv firmware MITIGATE

Affected: 2.1.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.8

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-2023-42144?

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

Is CVE-2023-42144 being exploited?

CVE-2023-42144 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-2023-42144 affect?

CVE-2023-42144 affects trv firmware. Severity is medium (CVSS 5.5). Cleartext Transmission during initial setup in Shelly TRV 20220811-15234 v.2.1.8 allows a local attacker to obtain the Wi-Fi password.

How urgent is CVE-2023-42144?

Priority 20/100. No elevated risk signals yet.

Software pages

Wi-Fi vulnerabilities

Related CVEs

CVE-2023-42143 MEDIUM 5.4 MITIGATE Missing Integrity Check in Shelly TRV 20220811-152343/v2.1.8@5afc928c allows malicious users to create a backd

References

← Back to latest CVEs