CVE-2023-34390

Name: CVE-2023-34390
Creator: NVD / NIST
Published: 2023-11-30T17:15:09.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.66%

Last modified Jun 17, 2026

CVE-2023-34390 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An input validation vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated attacker to create a denial of service against the system and locking out services. See product Instruction Manual Appendix A dated 20230830 for more details. . EPSS estimates a 0.66% chance of exploitation in the next 30 days.

Description

An input validation vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated attacker to create a denial of service against the system and locking out services. See product Instruction Manual Appendix A dated 20230830 for more details.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.66%

47.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Selinc	Sel-451 Firmware	>= r315-v0, < r315-v4
Selinc	Sel-451 Firmware	>= r316-v0, < r316-v4
Selinc	Sel-451 Firmware	>= r317-v0, < r317-v4
Selinc	Sel-451 Firmware	>= r318-v0, < r318-v5
Selinc	Sel-451 Firmware	>= r320-v0, < r320-v3
Selinc	Sel-451 Firmware	>= r321-v0, < r321-v3
Selinc	Sel-451 Firmware	>= r322-v0, < r322-v3
Selinc	Sel-451 Firmware	>= r323-v0, < r323-v5
Selinc	Sel-451 Firmware	>= r324-v0, < r324-v4
Selinc	Sel-451 Firmware	>= r325-v0, < r325-v3
Selinc	Sel-451 Firmware	r326-v0
Selinc	Sel-451 Firmware	r327-v0

References

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

Timeline

Published: Nov 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-34390?

How severe is CVE-2023-34390?

CVE-2023-34390 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2023-34390?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-34390?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST