CVE-2021-4466

IPCop <= 2.1.9 Authenticated RCE

HIGH
8.7
CVSS Score
Published: November 14, 2025 at 10:52 PM UTC
Updated: June 17, 2026 at 04:19 AM UTC
1 product affected across 1 vendorIpcop

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Severity
HIGH8.7
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 2.1.9

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

Product
Source: cverecord
https://www.ipcop.org/

SSVC — Action Prioritization

SSVCNo known exploitAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-78

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