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Vulnerabilities

Vulnerability · CVE-2014-4691

Session fixation vulnerability in pfSense before 2.1.4 allows remote attackers to hijack web sessions via a firewall login cookie.

Published Jul 2, 2014 · catalog updated Jun 17, 2026 · Session fixation vulnerability in

Last checked Nov 9, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2014-4691. EPSS is 2.56%. Act only if a listed version of Session fixation vulnerability in is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Session fixation vulnerability in).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.56%
Remediation
Version ranges on file
Affected products
cpe netgate/pfsense

Session fixation vulnerability in pfSense before 2.1.4 allows remote attackers to hijack web sessions via a firewall login cookie.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe netgate/pfsense<= 2.1.3

How to fix CVE-2014-4691

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2014-4691. EPSS is 2.56%. Act only if a listed version of Session fixation vulnerability in is installed.

Which versions are affected?

Compare what you have installed with <= 2.1.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 2.56%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

pfSense security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 2, 2014 · Monitored products — high

    Detected

    Session fixation vulnerability in pfSense before 2.1.4 allows remote attackers to hijack web sessions via a firewall login cookie.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    Session fixation vulnerability in pfSense before 2.1.4 allows remote attackers to hijack web sessions via a firewall login cookie.

Sources

  • CVE.orgVulnerability recordCVE-2014-4691

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2014-4691

    Session fixation vulnerability in pfSense before 2.1.4 allows remote attackers to hijack web sessions via a firewall login cookie.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 9, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 6, 2026
  • Monitored products — highNov 6, 2026