CVE-2023-45852
CVE-2023-45852 is a critical-severity vulnerability in Viessmann Vitogate 300 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-77.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 14% (96th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-77
- Affected product: Viessmann Vitogate 300 Firmware
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2023-45852?
- 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.
- How severe is CVE-2023-45852?
- CVE-2023-45852 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-45852 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-45852?
- CVE-2023-45852 affects Viessmann Vitogate 300 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-45852?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2023-45852 published?
- CVE-2023-45852 was published on 2023-10-14 and last updated on 2026-06-17.
References
- https://connectivity.viessmann.com/gb/mp-fp/vitogate/vitogate-300-bn-mb.html
- https://github.com/Push3AX/vul/blob/main/viessmann/Vitogate300_RCE.md
Affected products (1)
- cpe:2.3:o:viessmann:vitogate_300_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Viessmann Vitogate 300 Firmware
- CVE-2023-5222 — Medium (CVSS 6.3): A vulnerability classified as critical was found in Viessmann Vitogate 300 up to 2.1.3.0. This vulnerability affects…
- CVE-2023-5702 — Medium (CVSS 4.3): A vulnerability was found in Viessmann Vitogate 300 up to 2.1.3.0 and classified as problematic. Affected by this issue…
All CVEs affecting Viessmann Vitogate 300 Firmware →
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