CVE-2021-44466

HIGH
7.3
CVSS Score
Published: December 30, 2021 at 09:31 PM UTC
Updated: June 17, 2026 at 04:12 AM UTC
1 product affected across 1 vendorBitmask Riseup VPN· also runs on 1 platform

Using Bitmask Riseup VPN 0.21.6 by N/A?

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Severity
HIGH7.3
Exploit prediction
EPSS 0.4%

Description

Bitmask Riseup VPN 0.21.6 contains a local privilege escalation flaw due to improper access controls. When the software is installed with a non-default installation directory off of the system root, the installer fails to properly set ACLs. This allows lower privileged users to replace the VPN executable with a malicious one. When a higher privileged user such as an Administrator launches that executable, it is possible for the lower privileged user to escalate to Administrator privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

microsoft-windows (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_MISCPatchThird Party Advisory
https://www.tenable.com/security/research/tra-2021-58

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-732

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