CVE-2021-3606

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

Description

OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (openvpn.exe).

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

n/a

OpenVPN-GUI

affected

Version	Status	Constraints
`2.5.2 and prior releases`	affected	—

Configuration 1 [-]

AND

cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-26910	OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (openvpn.exe).

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Local

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.344% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://community.openvpn.net/openvpn/wiki/CVE-2021-3606
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements

History

No history.

Subscriptions

Microsoft Windows

Openvpn Openvpn

Weaknesses

CWE-427

Sources

CVE record Updated: Aug 3, 2024, 5:01 PM

Status: PUBLISHED
Assigner: OpenVPN
Published: Jul 2, 2021, 12:30 PM
Updated: Aug 3, 2024, 5:01 PM
Reserved: Jun 17, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:05 AM

Status: Modified
Published: Jul 2, 2021, 1:15 PM
Modified: Jun 17, 2026, 4:05 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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