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Vulnerabilities

Vulnerability · CVE-2019-16701

pfSense through 2.3.4 through 2.4.4-p3 allows Remote Code Injection via a methodCall XML document with a pfsense.exec_php call containing shell metacharacters in a parameter value.

Published Sep 25, 2019 · catalog updated Jun 17, 2026 · pfSense through 2.3.4 through

Last checked Nov 10, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2019-16701 is not in CISA KEV. FIRST estimates a 19.61% chance of exploitation in the next 30 days. Check whether you run pfSense through 2.3.4 through.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (pfSense through 2.3.4 through).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
19.61%
Remediation
Version ranges on file
Affected products
cpe netgate/pfsense

pfSense through 2.3.4 through 2.4.4-p3 allows Remote Code Injection via a methodCall XML document with a pfsense.exec_php call containing shell metacharacters in a parameter value.

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/pfsense2.4.4
  • cpe netgate/pfsense< 2.4.4

How to fix CVE-2019-16701

What to do

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

Should you patch?

CVE-2019-16701 is not in CISA KEV. FIRST estimates a 19.61% chance of exploitation in the next 30 days. Check whether you run pfSense through 2.3.4 through.

Which versions are affected?

Compare what you have installed with 2.4.4, < 2.4.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS 19.61%. 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.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 25, 2019 · Monitored products — high

    Detected

    pfSense through 2.3.4 through 2.4.4-p3 allows Remote Code Injection via a methodCall XML document with a pfsense.exec_php call containing shell metacharacters in a parameter value.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    pfSense through 2.3.4 through 2.4.4-p3 allows Remote Code Injection via a methodCall XML document with a pfsense.exec_php call containing shell metacharacters in a parameter value.

Sources

  • CVE.orgVulnerability recordCVE-2019-16701

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2019-16701

    pfSense through 2.3.4 through 2.4.4-p3 allows Remote Code Injection via a methodCall XML document with a pfsense.exec_php call containing shell metacharacters in a parameter value.

    nvd.nist.gov
  • Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/154587/pfSense-2.3.4-2.4.4-p3-Remote-Code-Injection.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com

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.

  • Packet Storm SecurityNov 10, 2026
  • CVE.orgNov 6, 2026
  • Monitored products — highNov 6, 2026