What’s Vulnerable › Vulnerabilities

CVE-2019-6533

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-02-12 · updated 2026-06-17
• Weakness: CWE-306

Description

Registers used to store Modbus values can be read and written from the web interface without authentication in the PR100088 Modbus gateway versions prior to Release R02 (or Software Version 1.1.13166).

Affected products

• ICS-CERT PR100088 Modbus gateway: before r02 — fixed in r02

How to fix

Upgrade to a fixed version: ICS-CERT PR100088 Modbus gateway r02. Check the vendor advisory for mitigations.

References

• https://ics-cert.us-cert.gov/advisories/ICSA-19-036-05
• https://ics-cert.us-cert.gov/advisories/ICSA-19-036-05

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