CVE-2023-31176 - CVE House
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Status published High CVE-2023-31176

Insufficient entropy vulnerability could lead to authentication bypass

Vulnerability Description

An Insufficient Entropy vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow an unauthenticated remote attacker to brute-force session tokens and bypass authentication.  See product Instruction Manual Appendix A dated 20230830 for more details.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Andrea Palanca and Gabriele Quagliarella of Nozomi Networks

References

More from Schweitzer Engineering Laboratories

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CVE-2025-48016
Improper Control of Interaction Frequency
Medium 4.3
CVE-2025-48015
Observable Response Discrepancy
Low 3.7
CVE-2025-48014
Improper Restriction of Excessive Authentication Attempts
High 7.5

Affected Vendor

Schweitzer Engineering Laboratories

View all reports →

Affected Software

SEL-451
Vulnerable Versions:
R315-V0, R316-V0, R317-V0, R318-V0, R320-V0, R321-V0, R322-V0, R323-V0, R324-V0, R325-V0, R326-V0, R327-V0

Timeline

Official Publish: November 30th, 2023
Last Modified: October 16th, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weaknesses (CWE)

CWE-331

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.