CVE-2026-40814Network attack vector

Database disclosure via injectable tag-alarm query

Published May 27, 2026 · Updated May 27, 2026

SQL injection in mbCONNECT24, mymbCONNECT24, myREX24 V2, and myREX24 V2 Virtual Server through 2.20.0 allows remote attackers to read database data. The _mb24confi_getTagAlarm function in dataapi.php incorporates untrusted input into a SQL SELECT command without neutralizing SQL syntax. No authentication or user interaction is required; successful exploitation exposes the entire application database but does not alter data or interrupt service.

CVSS severity8.7
High
EPSS probability0.32%
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

SQL injection in mbCONNECT24, mymbCONNECT24, myREX24 V2, and myREX24 V2 Virtual Server through 2.20.0 allows remote attackers to read database data. The _mb24confi_getTagAlarm function in dataapi.php incorporates untrusted input into a SQL SELECT command without neutralizing SQL syntax. No authentication or user interaction is required; successful exploitation exposes the entire application database but does not alter data or interrupt service.

The record

CVE
CVE-2026-40814
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Helmholz GmbH & Co. KG
Product
myREX24 V2 Virtual Server
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record 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=0.0.0 <=2.20.0
  2. Affected versionversion=2.20.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Helmholz GmbH & Co. KG · myREX24 V2 Virtual Serverversion=0.0.0 <=2.20.0; version=2.20.0
Helmholz GmbH & Co. KG · myREX24 V2version=0.0.0 <=2.20.0; version=2.20.0
MB connect line · mbCONNECT24version=0.0.0 <=2.20.0; version=2.20.0
MB connect line · mymbCONNECT24version=0.0.0 <=2.20.0; version=2.20.0

Published CVSS scores

7.5CERT@VDECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7CERT@VDECVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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

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