CVE-2019-16667 EXPLOIT
8.8
HIGH · CVSS 3.1 · EPSS 54.5% (pctl 99)
Patch early
A public exploit exists.
Description
diag_command.php in pfSense 2.4.4-p3 allows CSRF via the txtCommand or txtRecallBuffer field, as demonstrated by executing OS commands. This occurs because csrf_callback() produces a "CSRF token expired" error and a Try Again button when a CSRF token is missing.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 54.54% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-352 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-09-26 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| netgate | pfsense |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | pfSense 2.4.4-p3 - Cross-Site Request Forgery | 2020-07-26 |
References
→ the Explorer · watch your stack · NVD