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CVE-2011-4197
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…
High7.5EPSS 1.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 1.9% · top 20% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (8)
- 51169 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20111222 [MATTA-2011-001] pfSense x509 Insecure Certificate Creation (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- https://www.trustmatta.com/advisories/MATTA-2011-001.txt (opens in a new tab)x_refsource_MISCx_transferred
- pfsense-x509-security-bypass(71969) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 77982 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 46780 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .