Is CVE-2026-5433 actively exploited?

No active exploitation of CVE-2026-5433 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-5433 be exploited remotely?

Yes. CVE-2026-5433 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-5433?

CVE-2026-5433 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2026-5433

Published: May 21, 2026· Updated: May 22, 2026

9.1

CVSS v3.1

EPSS:0.26%probability of exploitation in 30 daysPercentile:49.4th

Official Description

Honeywell Control

Network Module (CNM) contains command injection vulnerability

in the web interface. An attacker could exploit this vulnerability via command

delimiters, potentially resulting in Remote Code Execution (RCE).

NVD Source

Risk Analysis

This critical vulnerability (CVSS 9.1) in Honeywell Control Network Module (CNM) allows for command injection in the web interface. An attacker can exploit this flaw via command delimiters, potentially leading to Remote Code Execution (RCE). This could grant an attacker full control over the module.

No public exploit is currently known for this remotely exploitable vulnerability. While it requires high privileges, the low attack complexity means an attacker with initial access could easily execute arbitrary commands.

Recommended Action

Apply the latest security updates or patches from Honeywell for the Control Network Module firmware. Implement strict access controls and monitor for unusual command execution attempts on the CNM web interface.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-5433 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.1.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.