What’s Vulnerable › Vulnerabilities

CVE-2021-4466: IPCop <= 2.1.9 Authenticated RCE

• Severity: high (CVSS 8.7 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-14 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• IPCop Project IPCop: through 2.1.9

References

• https://sourceforge.net/projects/ipcop/
• https://www.exploit-db.com/exploits/50183
• https://www.ipcop.org/
• https://www.vulncheck.com/advisories/ipcop-authenticated-rce

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