CVE-2026-10521: high-severity vulnerability in mbCONNECT24
Authenticated unintended access to critical program parameters
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.6%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Related CVEs — mbCONNECT24
In the same product, most dangerous first.
CVE-2021-34580HIGHRemote user enumeration in mymbCONNECT24, mbCONNECT24 <= 2.9.0EPSS 1.0%CVE-2020-12527MEDIUMImproper Access Validation in products of MB connect line and HelmholzEPSS 1.0%CVE-2022-22520MEDIUMUser enumeration vulnerability in MB connect line and Helmholz productsEPSS 1.0%CVE-2021-34575HIGHInformation Exposure in mymbCONNECT24, mbCONNECT24 <= 2.8.0EPSS 1.0%CVE-2026-14448HIGHAuthenticated RCE in system_certificates viewEPSS 0.9%CVE-2020-12528MEDIUMCVE-2020-12528EPSS 0.9%