What is the CVSS score of CVE-2022-30312?

CVE-2022-30312 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.2%.

Honeywell CVE-2022-30312

MEDIUM

Cleartext Transmission of Sensitive Information (CWE-319)

2022-09-07 cve@mitre.org

Information Disclosure Microsoft Honeywell Trend Iq412 Firmware Trend Iq411 Firmware Trend Iq422 Firmware Trend Iq4Nc Firmware Trend Iq4E Firmware

6.5

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-319 OWASP Top 10:2025 A04:2025 - Cryptographic Failures ASVS 5.0 V12 - Secure Communication Transport encryption
Impact	CVSS score of 6.5 (MEDIUM). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAI

The Trend Controls IC protocol through 2022-05-06 allows Cleartext Transmission of Sensitive Information. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-319. The Trend Controls IC protocol through 2022-05-06 allows Cleartext Transmission of Sensitive Information. According to FSCT-2022-0050, there is a Trend Controls Inter-Controller (IC) protocol cleartext transmission of credentials issue. The affected components are characterized as: Inter-Controller (IC) protocol (57612/UDP). The potential impact is: Compromise of credentials. Several Trend Controls building automation controllers utilize the Inter-Controller (IC) protocol in for information exchange and automation purposes. This protocol offers authentication in the form of a 4-digit PIN in order to protect access to sensitive operations like strategy uploads and downloads as well as optional 0-30 character username and password protection for web page access protection. Both the PIN and usernames and passwords are transmitted in cleartext, allowing an attacker with passive interception capabilities to obtain these credentials. Credentials are transmitted in cleartext. An attacker who obtains Trend IC credentials can carry out sensitive engineering actions such as manipulating controller strategy or configuration settings. If the credentials in question are (re)used for other applications, their compromise could potentially facilitate lateral movement. Affected products include: Honeywell Trend Iq412 Firmware, Honeywell Trend Iq411 Firmware, Honeywell Trend Iq422 Firmware, Honeywell Trend Iq4Nc Firmware, Honeywell Trend Iq4E Firmware. Version information: through 2022.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

DescriptionNVD

The Trend Controls IC protocol through 2022-05-06 allows Cleartext Transmission of Sensitive Information. According to FSCT-2022-0050, there is a Trend Controls Inter-Controller (IC) protocol cleartext transmission of credentials issue. The affected components are characterized as: Inter-Controller (IC) protocol (57612/UDP). The potential impact is: Compromise of credentials. Several Trend Controls building automation controllers utilize the Inter-Controller (IC) protocol in for information exchange and automation purposes. This protocol offers authentication in the form of a 4-digit PIN in order to protect access to sensitive operations like strategy uploads and downloads as well as optional 0-30 character username and password protection for web page access protection. Both the PIN and usernames and passwords are transmitted in cleartext, allowing an attacker with passive interception capabilities to obtain these credentials. Credentials are transmitted in cleartext. An attacker who obtains Trend IC credentials can carry out sensitive engineering actions such as manipulating controller strategy or configuration settings. If the credentials in question are (re)used for other applications, their compromise could potentially facilitate lateral movement.

Threat Intelligence Overview

EPSS Score

0.2%

Top 88% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Controlled

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.