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mbCONNECT24 EUVD-2026-32121

| CVE-2026-40816 HIGH
SQL Injection (CWE-89)
2026-05-27 info@cert.vde.com GHSA-7845-cw4c-743q
8.7
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
May 27, 2026 - 19:59 vuln.today

DescriptionNVD

An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the mb24alarm.php files _mb24confi_getTagAlarm function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

AnalysisAI

SQL injection in MB connect line's mbCONNECT24, mymbCONNECT24, and myREX24V2 remote-maintenance portals (all versions up to and including 2.20.0) lets an unauthenticated remote attacker inject crafted SQL through the _mb24confi_getTagAlarm function in mb24alarm.php, resulting in a total loss of database confidentiality. The CVSS 4.0 base score of 8.7 reflects network reach with no authentication or user interaction (AV:N/AC:L/PR:N/UI:N), but impact is scoped to confidentiality only (VC:H, VI:N, VA:N) - an attacker can read data but cannot directly alter or disrupt the system through this flaw. …

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RemediationAI

24 hours: Isolate affected portals to VPN or internal networks only; audit access logs for suspicious queries or repeated failed requests to mb24alarm.php. 7 days: Implement firewall rules restricting remote-maintenance portal access to known administrator IP addresses; enable database activity monitoring (DAM) to detect SQL injection patterns. …

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EUVD-2026-32121 vulnerability details – vuln.today

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