7.5

CVE-2011-4197: pfsense

CVSS: 7.5v2.0HighModified
Published 03-01-2012Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2011-4197 is a high (CVSS 7.5) vulnerability in pfsense. EPSS estimates a 1.92% chance of exploitation in the next 30 days, higher than 79.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
1.92%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-01-2012
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.92%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

0.00 pp

From 1.92% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.92%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Pfsense1 product
  • pfsense≤ 2.0 | 1.0.x | 1.2.1 | 1.2.2 | 1.2.3

1 vendor · 1 product

References

8 links