CVE-2021-4466
HIGH EPSS 37.2%
Published Nov 14, 20257mo ago · Modified Jun 17, 20261w ago
8.7 CVSS 4.0
Published Nov 14, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago
Description
IPCop versions up to and including 2.1.9 contain an authenticated remote code execution vulnerability within the web-based administration interface. The email configuration component inserts user-controlled values, including the EMAIL_PW parameter, directly into system-level operations without proper input sanitation. By modifying the email password field to include shell metacharacters and issuing a save-and-test-mail action, an authenticated attacker can execute arbitrary operating system commands with the privileges of the web interface, resulting in full system compromise.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
37.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-78 OS Command Injection Injection
References 4
- sourceforge.net https://sourceforge.net/projects/ipcop/
- exploit-db.com https://www.exploit-db.com/exploits/50183
- ipcop.org https://www.ipcop.org/
- vulncheck.com https://www.vulncheck.com/advisories/ipcop-authenticated-rce
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.