PatchTheCVECVE-2026-111230: Netgate pfSense CE through 2.9.0 contains a local file read vulnerability that allows users with the Dynamic D
CVE-2026-111230 is a medium-severity flaw (CVSS 4.9) affecting pfsense. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.8% (top 45%) |
| CISA exploited list | No |
| Weakness | CWE-73 |
| Published | 2026-10-15 |
| Last modified | 2026-10-19 |
Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-111230?
pfsense: upgrade to newer than 2.9.0. Exact commands for each OS are on this page.
Is CVE-2026-111230 being exploited?
CVE-2026-111230 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-111230 affect?
CVE-2026-111230 affects pfsense. Severity is medium (CVSS 4.9). 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
How urgent is CVE-2026-111230?
Priority 31/100. No elevated risk signals yet.
Software pages
PHP vulnerabilities · pfSense and OPNsense vulnerabilities
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