What is CVE-2023-27152?

CVE-2023-27152 is a critical-severity vulnerability in Opnsense, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 9.8/10. Published 2023-10-23.

How severe is CVE-2023-27152?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-27152 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Opnsense

CVE-2023-27152

DECISO OPNsense 23.1 does not impose rate limits for authentication, allowing attackers to perform a brute-force attack to bypass authentication.

EPSS: 0.009 (55.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Opnsense — versions 23.1
N/a — versions n/a

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-27152?: CVE-2023-27152 is a critical-severity vulnerability in Opnsense, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 9.8/10. Published 2023-10-23.
How severe is CVE-2023-27152?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-27152 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.