CVE-2021-33526 is a high-severity arbitrary code execution vulnerability affecting MB connect line mbDIALUP versions <= 3.9R0.0. A low-privileged local attacker can exploit this by instructing the NT AUTHORITY\SYSTEM service to execute a malicious OpenVPN configuration. This allows for arbitrary code execution with system privileges, leading to high impact on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, the vulnerability has received limited community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.9R0.0, <= 3.9R0.0CPE match | cpe:2.3:a:mbconnectline:mbdialup:*:*:*:*:*:*:*:* | ||
<= 3.9r0.0CPE matchmatch criteria | cpe:2.3:a:mbconnectline:mbdialup:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.