What is CVE-2021-33526?

CVE-2021-33526 is a high-severity vulnerability in Mb Connect Line Mbdialup, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-08-02.

How severe is CVE-2021-33526?

High severity. CVSS v3 base score is 7.8 out of 10.

Privilege escalation in Mb Connect Line Mbdialup

CVE-2021-33526

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.

Vulnerability class: Privilege Escalation

EPSS: 0.003 (16.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mb Connect Line Mbdialup — versions 3.9R0.0
Mbconnectline Mbdialup

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

info@cert.vde.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-33526?: CVE-2021-33526 is a high-severity vulnerability in Mb Connect Line Mbdialup, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-08-02.
How severe is CVE-2021-33526?: High severity. CVSS v3 base score is 7.8 out of 10.