CVE-2025-0658Network attack vector

Persistent device outage via malformed BACnet packets

Published Nov 27, 2025 · Updated Nov 28, 2025

Denial of service in Automated Logic and Carrier Zone Controllers before 6.06-101 allows remote attackers to crash devices via BACnet MS/TP. The BACnet packet-processing path fails to reject specific malformed MS/TP packets, placing the controller in a fault state; repeating the trigger after reset leaves it unresponsive. Unauthenticated access to the BACnet MS/TP network is sufficient, and recovery after the second trigger requires a manual power cycle.

CVSS severity8.7
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Automated Logic and Carrier Zone Controllers before 6.06-101 allows remote attackers to crash devices via BACnet MS/TP. The BACnet packet-processing path fails to reject specific malformed MS/TP packets, placing the controller in a fault state; repeating the trigger after reset leaves it unresponsive. Unauthenticated access to the BACnet MS/TP network is sufficient, and recovery after the second trigger requires a manual power cycle.

The record

CVE
CVE-2025-0658
Published
Nov 27, 2025
Updated
Nov 28, 2025
Vendor
Automated Logic
Product
Zone Controllers
Classifications
CWE-20, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 28, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <6.06-101

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Automated Logic · Zone Controllersversion=0 <6.06-101
Carrier · Zone Controllersversion=0 <6.06-101

Published CVSS scores

8.7Carrier Global CorporationCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T0814Denial of Service

Public exploit references

No public exploit references are available in this record.

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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