What is CVE-2018-4021?

CVE-2018-4021 is a high-severity vulnerability in Netgate Pfsense, classified under OS Command Injection. CVSS score: 7.2/10. Published 2018-12-03.

How severe is CVE-2018-4021?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Netgate Pfsense

CVE-2018-4021

An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request. The attacker can exploit this and gain the ability to execute arbitrary commands on the…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.722 (99.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Netgate Pfsense — versions Netgate pfSense CE 2.4.4-RELEASE
Netgate Pfsense — versions 2.4.4

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-4021?: CVE-2018-4021 is a high-severity vulnerability in Netgate Pfsense, classified under OS Command Injection. CVSS score: 7.2/10. Published 2018-12-03.
How severe is CVE-2018-4021?: High severity. CVSS v3 base score is 7.2 out of 10.