High severity · published May 27, 2026
CVE-2026-40810
Unauthenticated SQLi in userinfo Endpoint
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the userinfo endpoint due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MB
mbCONNECT24 · MB connect line
0.0.0 through 2.20.0; 2.20.0 · source: vendor
MY
myREX24V2 · Helmholz
0.0.0 through 2.20.0; 2.20.0 · source: vendor
MY
myREX24V2.virtual · Helmholz
0.0.0 through 2.20.0; 2.20.0 · source: vendor
MY
mymbCONNECT24 · MB connect line
0.0.0 through 2.20.0; 2.20.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40810
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40810
www.certvde.com
https://www.certvde.com/en/advisories/VDE-2026-044/
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