CVE-2023-31176

9.8 criticalEPSS 0.9%

Critical (9.8) in selinc sel-451 firmware. EPSS 0.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE: CWE-331
Published: 2023-11-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

selinc:sel-451_firmware

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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