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
Published Jan 3, 2012
7.5
HIGHCVSS 2.0
EPSS 1.92%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.92% 0.01924
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01924
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.92% (0.01924) | 79.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.00% (0.01997) | 78.06th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.90% (0.00902) | 74.08th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.41% (0.01405) | 86.99th | v3 (v2023.03.01) |
| May 8, 2024 | 1.41% (0.01405) | 86.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.41% (0.01405) | 84.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html mailing-listx_refsource_BUGTRAQ
- http://secunia.com/advisories/46780 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.osvdb.org/77982 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/51169 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71969 vdb-entryx_refsource_XF
- https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e x_refsource_CONFIRM
- https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894 x_refsource_CONFIRM
- https://www.trustmatta.com/advisories/MATTA-2011-001.txt x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html | mailing-listx_refsource_BUGTRAQ | |
| http://secunia.com/advisories/46780 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.osvdb.org/77982 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/51169 | vdb-entryx_refsource_BID | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/71969 | vdb-entryx_refsource_XF | |
| https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e | x_refsource_CONFIRM | |
| https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894 | x_refsource_CONFIRM | |
| https://www.trustmatta.com/advisories/MATTA-2011-001.txt | x_refsource_MISC |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 3, 2012
Updated Aug 7, 2024
Reserved Oct 26, 2011
Link CVE-2011-4197
CISA Vulnrichment
Updated n/a