CVE-2022-34827Public exploitNetwork attack vector

Maintainer-to-root escalation via permission tampering

Published Nov 18, 2022 · Updated Apr 29, 2025

Privilege escalation in Carel Boss Mini before 1.9.0_Hotfix_20220930 allows remote authenticated users to obtain a root terminal. A configuration update sends the entire configuration to the embedded web server, which accepts a maintainer's altered terminal-view permission. A maintainer account and intercepted web request are required; successful exploitation grants root control of the HVAC controller.

CVSS severity9.9
Critical
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Carel Boss Mini before 1.9.0_Hotfix_20220930 allows remote authenticated users to obtain a root terminal. A configuration update sends the entire configuration to the embedded web server, which accepts a maintainer's altered terminal-view permission. A maintainer account and intercepted web request are required; successful exploitation grants root control of the HVAC controller.

The record

CVE
CVE-2022-34827
Published
Nov 18, 2022
Updated
Apr 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T0890
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 18, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.2MandiantCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H/E:F/RL:O/RC:C
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.9NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T0890Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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