CVE-2023-42143

Name: CVE-2023-42143
Creator: NVD / NIST
Published: 2024-01-23T20:15:45.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.15%

Last modified Jun 17, 2026

CVE-2023-42143 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Missing Integrity Check in Shelly TRV 20220811-152343/v2.1.8@5afc928c allows malicious users to create a backdoor by redirecting the device to an attacker-controlled machine which serves the manipulated firmware file. The device is updated with the manipulated firmware.. EPSS estimates a 0.15% chance of exploitation in the next 30 days.

Description

Missing Integrity Check in Shelly TRV 20220811-152343/v2.1.8@5afc928c allows malicious users to create a backdoor by redirecting the device to an attacker-controlled machine which serves the manipulated firmware file. The device is updated with the manipulated firmware.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.15%

5.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Shelly	Trv Firmware	2.1.8

References

https://www.kth.se/cs/nse/research/software-systems-architecture-and-security/projects/ethical-hacking-1.1279219Third Party Advisory
https://www.kth.se/cs/nse/research/software-systems-architecture-and-security/projects/ethical-hacking-1.1279219Third Party Advisory

Timeline

Published: Jan 23, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-42143?

How severe is CVE-2023-42143?

CVE-2023-42143 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.15% probability of exploitation in the next 30 days.

How do I fix CVE-2023-42143?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-42143?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST