CVE-2023-27100
CVSS v3
9.8
CRITICAL
EPSS Score
9.8 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software v2.6.0 allows attackers to bypass brute force protection mechanisms via crafted web requests.
Technical details
- Published
- 2023-03-22
- Exploit-DB
- EDB-51352
Frequently asked questions
What is CVE-2023-27100?
Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software v2.6.0 allows attackers to bypass brute force protection mechanisms via crafted web requests.
Is CVE-2023-27100 actively exploited?
Active exploitation of CVE-2023-27100 has not been confirmed. Its EPSS score was 9.8% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-27100?
CVE-2023-27100 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2023-27100 affecting your environment?
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