Netgate pfSense CE through 2.9.0 contains a local file read vulnerability that allows users with the Dynamic DNS client privilege to read files as root by setting a file:// custom Update URL in services_dyndns_edit.php. Attackers can set a non-matching Result Match string so _checkStatus() logs file contents such as /conf/config.xml or /etc/master.passwd to the system log.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 4
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-19 20:42
- StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-19 20:42
- StatusReceived → Awaiting AnalysisNVD modified 2026-10-15 21:05
- First seenCVSS 6.9NVD modified 2026-10-15 19:17
Affected (CPE criteria) 1
cpe:2.3:a:pfsense:pfsense:*:*:*:*:community:*:*:*
References 6
- https://abraxaslabs.tech/research/pfsense-ce-leftovers Issue Tracking
- https://github.com/abraxas/pfsense-dyndns-file Third Party Advisory
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/dyndns.class#L2151-L2171 Product
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/dyndns.class#L598-L616 Product
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/services_dyndns_edit.php#L138-L141 Product
- https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-local-file-read-via-dynamic-dns-update-url Third Party Advisory