What’s Vulnerable › Vulnerabilities

CVE-2021-33526: Privilege escalation in mbDIALUP <= 3.9R0.0

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-02 · updated 2026-06-17
• Weakness: CWE-269

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.

Affected products

• MB connect line mbDIALUP: through 3.9r0.0

References

• https://cert.vde.com/de-de/advisories/vde-2021-017
• https://cert.vde.com/de-de/advisories/vde-2021-017

Get alerted when CVE-2021-33526 or the next vulnerability affects your stack