What’s Vulnerable › Vulnerabilities

CVE-2022-2967

• Severity: high (CVSS 7.5 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: 2023-01-03 · updated 2026-06-17
• Weakness: CWE-522

Description

Prosys OPC UA Simulation Server version prior to v5.3.0-64 and UA Modbus Server versions 1.4.18-5 and prior do not sufficiently protect credentials, which could allow an attacker to obtain user credentials and gain access to system data.

Affected products

• Prosysopc Ua Modbus Server: before 1.4.20 — fixed in 1.4.20
• Prosysopc Ua Simulation Server: before 5.4.0 — fixed in 5.4.0

How to fix

Upgrade to a fixed version: Prosysopc Ua Modbus Server 1.4.20; Prosysopc Ua Simulation Server 5.4.0. Check the vendor advisory for mitigations.

References

• https://www.cisa.gov/uscert/ics/advisories/icsa-22-349-01
• https://www.prosysopc.com/blog/#Security
• https://www.cisa.gov/uscert/ics/advisories/icsa-22-349-01
• https://www.prosysopc.com/blog/#Security

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