Vulnerability · Published Jun 23, 2026 · Assigned by CERTVDE
CVE-2026-10521Authenticated unintended access to critical program parameters
High 7.2
In plain English
A high-severity security flaw in mbCONNECT24 from MB connect line. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.6%top 53.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An high privileged remote attacker can access a hidden configuration method, that should not be accessible by any user, to modify critical program parameters. This can result in a total loss of confidentiality, integrity and availability.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MB connect line | mbCONNECT24 | 0.0.0 – before 2.20.2 |
| MB connect line | mymbCONNECT24 | 0.0.0 – before 2.20.2 |
| MB connect line | mbCONNECT24 | 2.20.1 |
| MB connect line | mymbCONNECT24 | 2.20.1 |
Weakness: CWE-425 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H