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Critical9.8Netgate pfSense

Critical [CVE-2023-27100] Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1…

This critical-severity Netgate pfSense advisory covers CVE-2023-27100 affecting pfSense, pfSense Plus, pfSense CE.

CVE-2023-27100 Published Mar 22, 2023Updated by vendor Jun 17, 2026
Affected products & platforms
Netgate pfSensepfSense PluspfSense CE
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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.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Mitigation

The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Discussion(0)

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