CVE-2026-3893 CRITICAL

CVE-2026-3893: Carlson Software VASCO-B GNSS Receiver Missing Authentication for Critical Function

Vendor Carlson Software
Product VASCO-B GNSS Receiver
Weakness CWE-306 · Missing auth
Published April 28, 2026
Last update April 29, 2026
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CVSS base score

9.4/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

What the vulnerability does

01Description

The Carlson VASCO-B GNSS Receiver lacks an authentication mechanism, allowing an attacker with network access to directly access and modify its configuration and operational functions without needing credentials.

Key dates

02Disclosure timeline

April 28, 2026 CVE published
April 29, 2026 Record updated