What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-28 · updated 2026-10-26
• Weakness: CWE-306

Description

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.

Affected products

• Carlson Software VASCO-B GNSS Receiver: before 1.4.0 — fixed in 1.4.0

How to fix

Upgrade to a fixed version: Carlson Software VASCO-B GNSS Receiver 1.4.0. Check the vendor advisory for mitigations.

References

• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-113-02.json
• https://www.carlsonsw.com/support-and-training/
• https://www.cve.org/CVERecord?id=CVE-2026-3893

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