CVE-2025-9494

Viessmann Vitogate 300 OS Command Injection

State
Published
Severity
8.5 High
Published
Sep 23, 2025
Updated
Sep 23, 2025
Reserved
Aug 26, 2025

Read the record on cve.org

Description

An OS command injection vulnerability has been discovered in the Vitogate 300, which can be exploited by malicious users to compromise affected installations. Specifically, the `/cgi-bin/vitogate.cgi` endpoint is affected, when the `form` JSON parameter is set to `form-0-2`. The vulnerability stems from the fact that that function at offset 0x21c24 does not properly sanitize supplied input before interpolating it into a format string which gets passed to `popen()`. Consequently, an authenticated attacker is able to inject arbitrary OS commands and thus gain code execution on affected devices.

Scores

CVSSScoreVectorSource
4.08.5 HighCVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCarrier

Weaknesses

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

ProductVersions
Vitogate 300Viessmann
  • 1 to before 3.1.0.0Affected

References

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