High severity · published Oct 15, 2026
CVE-2026-111220
Netgate pfSense CE through 2.9.0 Crontab Injection via PPP Periodic Reset ptpid
7.2
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PC
pfSense CE · Netgate
through 2.9.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111220
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111220
abraxaslabs.tech
https://abraxaslabs.tech/research/pfsense-ce-leftovers
github.com
https://github.com/abraxas/pfsense-pppoe-cron
github.com
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/interfaces.inc#L2174-L2214
github.com
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/services.inc#L5652-L5660
github.com
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/interfaces_ppps_edit.php#L271-L278
www.vulncheck.com
https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-crontab-injection-via-ppp-periodic-reset-ptpid
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