What’s Vulnerable › Vulnerabilities

CVE-2023-34392: Missing Authentication for Critical Function

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-31 · updated 2026-06-17
• Weakness: CWE-306

Description

A Missing Authentication for Critical Function vulnerability in the Schweitzer Engineering Laboratories SEL-5037 SEL Grid Configurator could allow an attacker to run arbitrary commands on managed devices by an authorized device operator. See Instruction Manual Appendix A and Appendix E dated 20230615 for more details. This issue affects SEL-5037 SEL Grid Configurator: before 4.5.0.20.

Affected products

• Schweitzer Engineering Laboratories SEL-5037 SEL Grid Configurator: before 4.5.0.20 — fixed in 4.5.0.20

How to fix

Upgrade to a fixed version: Schweitzer Engineering Laboratories SEL-5037 SEL Grid Configurator 4.5.0.20. Check the vendor advisory for mitigations.

References

• https://selinc.com/support/security-notifications/external-reports/
• https://www.nozominetworks.com/blog/
• https://selinc.com/support/security-notifications/external-reports/
• https://www.nozominetworks.com/blog/

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