Netgate pfSense CE up to 2.9.0 PPPs Interface interfaces_ppps_edit.php configure_cron ptpid/reset injection

Summaryinfo

A vulnerability has been found in Netgate pfSense CE up to 2.9.0 and classified as very critical. Impacted is the function configure_cron of the file interfaces_ppps_edit.php of the component PPPs Interface. Performing a manipulation of the argument ptpid/reset results in injection. This vulnerability was named CVE-2026-111220. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Netgate pfSense CE up to 2.9.0. This affects the function configure_cron of the file interfaces_ppps_edit.php of the component PPPs Interface. The manipulation of the argument ptpid/reset with an unknown input leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

pfSense CE through 2.9.0 contains a crontab injection vulnerability in interfaces_ppps_edit.php that allows authenticated users to execute commands as root by injecting newlines into the ptpid or reset hour/minute fields. Attackers holding the 'WebCfg - Interfaces: PPPs: Edit' privilege can submit crafted POST values that configure_cron() writes unescaped into /etc/crontab, running arbitrary root commands on schedule.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-111220 since 10/15/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/15/2026). The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

By approaching the search of inurl:interfaces_ppps_edit.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• Netgate

Name

• pfSense CE

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9.0

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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