An authenticated command injection vulnerability exists in status_interfaces.php via dhcp_relinquish_lease() in pfSense before 2.4.4 due to its passing user input from the $_POST parameters "ifdescr" and "ipv" to a shell without escaping the contents of the variables
Published Sep 26, 2018
8.8
HIGHCVSS 3.0
EPSS 11.19%
Description
An authenticated command injection vulnerability exists in status_interfaces.php via dhcp_relinquish_lease() in pfSense before 2.4.4 due to its passing user input from the $_POST parameters "ifdescr" and "ipv" to a shell without escaping the contents of the variables. This allows an authenticated WebGUI user with privileges for the affected page to execute commands in the context of the root user when submitting a request to relinquish a DHCP lease for an interface which is configured to obtain its address via DHCP.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:S/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (26 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 11.19% (0.11191) | 95.84th | v5 (v2026.06.15) |
| Sep 22, 2026 | 11.19% (0.11191) | 95.75th | v5 (v2026.06.15) |
| Sep 21, 2026 | 9.57% (0.09569) | 95.31th | v5 (v2026.06.15) |
| Sep 6, 2026 | 11.19% (0.11191) | 95.66th | v5 (v2026.06.15) |
| Sep 5, 2026 | 9.57% (0.09569) | 95.20th | v5 (v2026.06.15) |
| Aug 30, 2026 | 11.19% (0.11191) | 95.63th | v5 (v2026.06.15) |
| Aug 28, 2026 | 9.57% (0.09569) | 95.18th | v5 (v2026.06.15) |
| Aug 24, 2026 | 11.19% (0.11191) | 95.61th | v5 (v2026.06.15) |
| Aug 23, 2026 | 9.57% (0.09569) | 95.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 11.19% (0.11191) | 95.38th | v5 (v2026.06.15) |
| Jul 12, 2025 | 13.50% (0.13502) | 93.88th | v4 (v2025.03.14) |
| Jun 21, 2025 | 10.76% (0.10763) | 92.99th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.55% (0.08552) | 91.57th | v4 (v2025.03.14) |
| Mar 29, 2025 | 18.52% (0.18523) | 92.17th | v4 (v2025.03.14) |
| Mar 19, 2025 | 8.55% (0.08552) | 91.33th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.10% (0.02101) | 82.88th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00153) | 52.91th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.15% (0.00153) | 51.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.15% (0.00153) | 49.66th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.05% (0.02055) | 79.82th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.05% (0.02055) | 77.90th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.05% (0.02055) | 56.59th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.16% (0.01163) | 29.87th | v1 |
| Jan 6, 2022 | 1.16% (0.01163) | 29.23th | v1 |
| Sep 1, 2021 | 1.16% (0.01163) | 67.05th | v1 |
| Apr 14, 2021 | 1.16% (0.01163) | 0.00th | v1 |
References (2)
- https://doddsecurity.com/190/command-injection-on-pfsense-firewalls/ x_refsource_MISCThird Party Advisory
- https://www.pfsense.org/security/advisories/pfSense-SA-18_08.webgui.asc x_refsource_CONFIRMMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://doddsecurity.com/190/command-injection-on-pfsense-firewalls/ | x_refsource_MISCThird Party Advisory | |
| https://www.pfsense.org/security/advisories/pfSense-SA-18_08.webgui.asc | x_refsource_CONFIRMMitigationVendor Advisory |
Change history (0)
No recorded changes yet.