CVE-2021-33526

Privilege escalation in mbDIALUP <= 3.9R0.0

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Published Aug 2, 2021 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

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

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

MB connect line

mbDIALUP

affected

Version	Status	Constraints
`3.9R0.0`	affected	≤ 3.9R0.0

Configuration 1 [-]

cpe:2.3:a:mbconnectline:mbdialup:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

Update to version 3.9R0.5

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-20218	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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.253% probability within 30 days)

Key SSVC decision points have not yet been added.

References

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

History

No history.

Subscriptions

Mbconnectline Mbdialup

Weaknesses

CWE-269

Sources

CVE record Updated: Sep 17, 2024, 1:56 AM

Status: PUBLISHED
Assigner: CERTVDE
Published: Aug 2, 2021, 10:24 AM
Updated: Sep 17, 2024, 1:56 AM
Reserved: May 24, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:54 AM

Status: Modified
Published: Aug 2, 2021, 11:15 AM
Modified: Jun 17, 2026, 3:54 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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