CVE-2011-4197

etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509...

7.5 High

etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.

Exploit likelihood

1.92%Up 0.5 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2011-4197
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-264
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-4197
Updated: 2026-11-02

EUVDEUVD-2011-4140 No score

Record: EUVD-2011-4140
Updated: 2026-11-03

GitHub AdvisoriesGHSA-wprp-q629-mgxj No score

etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509...

Record: GHSA-wprp-q629-mgxj
Updated: 2026-11-02

Affected products

pfsense

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-4197 is a high vulnerability (CVSS 7.5) in Pfsense, published January 3, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.92%, the 80th percentile. No source names a fixed version.

References

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