CVE-2023-45852

criticalpriority · track · 44EPSS 0.152 · 97 %ileEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

15.2% (97th) EPSS

CVSS 9.8 · critical

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationViessmann Vitogate 300cisa_csaf_ot
Viessmann Climate Solutions SE recommends customers update to version 3.0.0.0 to fix these vulnerabilities. The software is available to download at their (website)
https://connectivity.viessmann.com/de/mp-fp/vitogate/vitogate-300-bn-mb.html

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-77USprimaryCWE-77US

affected products (4)

Products and version ranges known to be affected.

Viessmann Climate Solutions SE Viessmann Vitogate 300: <=2.1.3.0all versionscisa_csaf_otUS
Viessmann Climate Solutions SE Viessmann Vitogate 300≤ 2.1.3.0cisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
viessmann vitogate 300 firmware≤ 2.1.3.0nvdUScpe:2.3:o:viessmann:vitogate_300_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-24-254-01Viessmann Climate Solutions SE Vitogate 3002024-09-10icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to achieve remote code execution.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2023-10-14modified 2026-06-17

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+4594 more

references (7)

External citations — patches, advisories, analysis.

scry

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