CVE-2023-5222 (GCVE-0-2023-5222)

Vulnerability from cvelistv5 – Published: 2023-09-27 13:31 – Updated: 2024-08-02 07:52
VLAI Shadowserver Previdian
Title
Viessmann Vitogate 300 Web Management Interface vitogate.cgi isValidUser hard-coded password
Summary
A vulnerability classified as critical was found in Viessmann Vitogate 300 up to 2.1.3.0. This vulnerability affects the function isValidUser of the file /cgi-bin/vitogate.cgi of the component Web Management Interface. The manipulation leads to use of hard-coded password. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-240364. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
6.3 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.3 (Medium)
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-09 14:25 UTC
CWE
  • CWE-259 - Use of Hard-coded Password
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3855 records in the last 180 days details
References
URL Tags
https://vuldb.com/?id.240364 vdb-entrytechnical-description
https://vuldb.com/?ctiid.240364 signaturepermissions-required
https://github.com/Push3AX/vul/blob/main/viessman… exploit
Impacted products
Vendor Product Version CPE status
Viessmann Vitogate 300 Affected: 2.1.0
Affected: 2.1.1
Affected: 2.1.2
Affected: 2.1.3
guessed Create a notification for this product.
Credits
PushEAX (VulDB User)
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: f128a45d-790d-46e8-8a8e-2169284694ea

Vulnerability ID: CVE-2023-5222

Status: Confirmed

Status Updated: 2026-11-09 00:00 UTC

Exploited: Yes

Characteristics
Severity: 98.0
Timestamps
First Seen: 2024-09-16
Asserted: 2024-09-16
Last Seen: 2026-11-09
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Viessmann / Vitogate 300 BN/MB | Class: other-software | Severity: Critical (CVSS 9.8) | IoT: yes | In CISA KEV: no | Honeypot connections on 2026-11-09: 1
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot yes
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class other-software
7D Avg 0
Vendor Viessmann
30D Avg 0
90D Avg 0
Product Vitogate 300 BN/MB
Cisa Kev no
Connections 1
Observation Date 2026-11-09
Vulnerability Class CVSS
Vulnerability Score 9.8
Vulnerability Severity Critical
References
Created: 2026-07-01 05:54 UTC | Updated: 2026-11-11 01:01 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 0a65dec8-2beb-4b8e-bdf5-79593f60720b

Vulnerability ID: CVE-2023-5222

Status: Confirmed

Status Updated: 2025-10-05 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-10-05
Asserted: 2025-10-05
Scope
Notes: KEVIntel entry: Viessmann Vitogate 300 Web Management Interface vitogate.cgi isValidUser hard-coded password | Affected: Viessmann / Vitogate 300 | CVSS: 6.3 (MEDIUM) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Viessmann Vitogate 300 Web Management Interface vitogate.cgi isValidUser hard-coded password
Vendor Viessmann
Product Vitogate 300
Added Date 2025-10-05T00:00:00.000Z
Cvss Score 6.3
Epss Score None
Cvss Severity MEDIUM
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-19 12:42 UTC | Updated: 2026-06-19 12:42 UTC
Show details on NVD website
To clipboard 

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              "url": "https://github.com/Push3AX/vul/blob/main/viessmann/Vitogate300_HardcodedPassword.md"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2023-09-27T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2023-09-27T00:00:00.000Z",
              "value": "CVE reserved"
            },
            {
              "lang": "en",
              "time": "2023-09-27T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2023-10-16T12:20:58.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "Viessmann Vitogate 300 Web Management Interface vitogate.cgi isValidUser hard-coded password"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2023-5222",
        "datePublished": "2023-09-27T13:31:06.216Z",
        "dateReserved": "2023-09-27T08:02:38.512Z",
        "dateUpdated": "2024-07-09T14:25:40.543Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.