CVE-2023-45852

Name: CVE-2023-45852
Creator: NVD / NIST
Published: 2023-10-14T02:15:09.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 14.00%

Last modified Jun 17, 2026

CVE-2023-45852 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In Vitogate 300 2.1.3.0, /cgi-bin/vitogate.cgi allows an unauthenticated attacker to bypass authentication and execute arbitrary commands via shell metacharacters in the ipaddr params JSON data for the put method.. EPSS estimates a 14.00% chance of exploitation in the next 30 days.

Description

In Vitogate 300 2.1.3.0, /cgi-bin/vitogate.cgi allows an unauthenticated attacker to bypass authentication and execute arbitrary commands via shell metacharacters in the ipaddr params JSON data for the put method.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

14.00%

96.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Viessmann	Vitogate 300 Firmware	<= 2.1.3.0

References

https://connectivity.viessmann.com/gb/mp-fp/vitogate/vitogate-300-bn-mb.htmlProduct
https://github.com/Push3AX/vul/blob/main/viessmann/Vitogate300_RCE.mdExploit, Third Party Advisory
https://connectivity.viessmann.com/gb/mp-fp/vitogate/vitogate-300-bn-mb.htmlProduct
https://github.com/Push3AX/vul/blob/main/viessmann/Vitogate300_RCE.mdExploit, Third Party Advisory

Timeline

Published: Oct 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45852?

How severe is CVE-2023-45852?

CVE-2023-45852 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 14.00% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45852?

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-2023-45852?

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

Scan your code now

Source: NVD / NIST