Critical9.8Netgate pfSense

pfSense: Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software…

CVE-2023-27100 Published Mar 22, 2023Updated by vendor Jun 17, 2026

CVE-2023-27100

Affected products & platforms

Netgate pfSenseUnclassified

Summary

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.

Mitigation

Mitigation steps weren't captured by the parser for this advisory — this is a parsing gap, not a statement that no fix exists. Read the vendor advisory below for the authoritative guidance.

Official advisory · medium-confidence parse· fetched 4 hours ago·verify at source

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