CVE-2021-33526

HIGH 7.8CVE-2021-33526 · Published 02/08/2021 · updated 17/06/2026

In short

CVE-2021-33526 is a HIGH (CVSS 7.8) vulnerability affecting mbdialup (mbconnectline).
Chance of exploitation in the next 30 days (EPSS): 0.25%, higher than 16.8% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
mbdialup mbconnectline	`≤ 3.9r0.0`	No fix yet

Description

In MB connect line mbDIALUP versions <= 3.9R0.0 a low privileged local attacker can send a command to the service running with NT AUTHORITY\SYSTEM instructing it to execute a malicous OpenVPN configuration resulting in arbitrary code execution with the privileges of the service.

References

cert.vde.com/de-de/advisories/vde-2021-017 · Third Party Advisory

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