CVE-2026-3893

CRITICALNVD 9.49.4—

9.4

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.

CVSS v3: 9.4
EG Score: 9.4(high)
EPSS: 28.6%
KEV: Not listed

Published

April 28, 2026

Last Modified

April 28, 2026

Advisory Details (3)

Auto-updated Apr 28, 2026

No patch confirmed yet.

generic

https://www.cve.org/CVERecord?id=CVE-2026-3893

generic

Carlson Software

https://www.carlsonsw.com/support-and-training/

generic

CSAF/csaf_files/OT/white/2026/icsa-26-113-02.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-113-02.json

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-306Missing Authentication for Critical Function

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 15:18 UTCEG score recompute
2026-05-20 15:18 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-3893?

CVE-2026-3893 is a critical vulnerability published on April 28, 2026. 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.

When was CVE-2026-3893 disclosed?

CVE-2026-3893 was first published in the National Vulnerability Database on April 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-3893 actively exploited?

CVE-2026-3893 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-3893?

CVE-2026-3893 has a CVSS v3 base score of 9.4 (NVD).

How do I remediate CVE-2026-3893?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-3893, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-3893

📅 Published

🔄 Last Modified

📋 Advisory Details (3)

Carlson Software

CSAF/csaf_files/OT/white/2026/icsa-26-113-02.json at develop · cisagov/CSAF · GitHub

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-3893?

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Published

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Advisory Details (3)

Frequently asked(5)

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