CVE-2023-5702

Vitogate 300 Firmware vulnerability

CVSS

4.3

EPSS

14.5%

EPSS pct

96th

Exploited

No known

A vulnerability was found in Viessmann Vitogate 300 up to 2.1.3.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /cgi-bin/. The manipulation leads to direct request. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-243140. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected vendor

Viessmann

Affected product

Vitogate 300 Firmware

CVSS vector

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

Weakness type (CWE)

CWE-425 — Direct Request (Forced Browsing)

Published

2023-10-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable from an adjacent network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to confidentiality.

Its EPSS score of 14.5% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2023-5702

Confirm whether Viessmann Vitogate 300 Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2023-5702.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-5702

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