What is CVE-2023-34392?

CVE-2023-34392 is a high-severity vulnerability in Schweitzer Engineering Laboratories Sel-5037 Sel Grid Configurator, classified under Missing Authentication for Critical Function. CVSS score: 8.2/10. Published 2023-08-31.

How severe is CVE-2023-34392?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in Schweitzer Engineering Laboratories Sel-5037 Sel Grid Configurator

CVE-2023-34392

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.

Vulnerability class: Broken Authentication

Published 2023-08-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (36.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: -0.000

Affected products

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

selinc.com/support/security-notifications/external-reports/ (Vendor Advisory)
www.nozominetworks.com/blog/ (Third Party Advisory)

Frequently asked questions

What is CVE-2023-34392?: CVE-2023-34392 is a high-severity vulnerability in Schweitzer Engineering Laboratories Sel-5037 Sel Grid Configurator, classified under Missing Authentication for Critical Function. CVSS score: 8.2/10. Published 2023-08-31.
How severe is CVE-2023-34392?: High severity. CVSS v3 base score is 8.2 out of 10.