CVE-2023-24501Public exploitNetwork attack vector

Remote control via hard-coded MQTT credentials

Published Apr 17, 2023 · Updated Feb 6, 2025

Hard-coded credentials in Electra Central AC Unit V4 and V5 firmware allow remote attackers to read unit data and issue MQTT commands. The controller firmware embeds reusable MQTT connection credentials that can be extracted and used to connect to the Internet-facing broker. No prior account or user action is required, and broker access permits publication of commands that change air-conditioner operation.

CVSS severity9.8
Critical
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Hard-coded credentials in Electra Central AC Unit V4 and V5 firmware allow remote attackers to read unit data and issue MQTT commands. The controller firmware embeds reusable MQTT connection credentials that can be extracted and used to connect to the Internet-facing broker. No prior account or user action is required, and broker access permits publication of commands that change air-conditioner operation.

The record

CVE
CVE-2023-24501
Published
Apr 17, 2023
Updated
Feb 6, 2025
Vendor
Electra Air
Product
Electra Central AC Unit
Classifications
CWE-798, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=Update to the latest version <V4 & V5*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Electra Air · Electra Central AC Unitversion=Update to the latest version <V4 & V5*

Published CVSS scores

9.8Israel National Cyber DirectorateCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1552.001Credentials In Files

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo