AUGUST 4, 2026
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Case File

CVE-2021-41282

HIGH · CVSS 8.8 EPSS 87.11% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-03-01 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

External Security References

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CVE
CVE-2021-41282
Severity
HIGH
CVSS
8.8
EPSS
87.11%

Original NVD Description

diag_routes.php in pfSense 2.5.2 allows sed data injection. Authenticated users are intended to be able to view data about the routes set in the firewall. The data is retrieved by executing the netstat utility, and then its output is parsed via the sed utility. Although the common protection mechanisms against command injection (i.e., the usage of the escapeshellarg function for the arguments) are used, it is still possible to inject sed-specific code and write an arbitrary file in an arbitrary location.