CVE-2013-3307

High

Published: 11 July 2025

Published

11 July 2025

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score v3.1 8.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

EPSS Score 0.0329 87.5th percentile

Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2013-3307 is a high-severity OS Command Injection (CWE-78) vulnerability. Its CVSS base score is 8.3 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 12.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2013-3307 is an OS command injection vulnerability (CWE-78) affecting Linksys E1000 devices through firmware version 2.1.02, E1200 devices before version 2.0.05, and E3200 devices through version 1.0.04. The issue resides in the apply.cgi script, which processes the ping_ip parameter over TCP port 52000 without properly sanitizing shell metacharacters, enabling arbitrary command execution. It carries a CVSS v3.1 base score of 8.3 (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L).

Any remote attacker can exploit this vulnerability without privileges or user interaction by crafting an HTTP request to the affected port with malicious shell metacharacters in the ping_ip parameter. Successful exploitation allows injection and execution of arbitrary OS commands on the device, resulting in low impacts to confidentiality, integrity, and availability, with a changed scope that may affect dependent components.

The Trustwave SpiderLabs advisory TWSL2013-008, archived at https://web.archive.org/web/20140421001918/https://www.trustwave.com/spiderlabs/advisories/TWSL2013-008.txt, documents the vulnerability. Mitigation requires upgrading to firmware versions beyond those listed as affected: E1000 after 2.1.02, E1200 at 2.0.05 or later, and E3200 after 1.0.04.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2013-3243

Vulnerability details

Linksys E1000 devices through 2.1.02, E1200 devices before 2.0.05, and E3200 devices through 1.0.04 allow OS command injection via shell metacharacters in the apply.cgi ping_ip parameter on TCP port 52000.

CWE(s): CWE-78

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059 Command and Scripting Interpreter Execution

Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.

attack.mitre.org →

Why these techniques?

Direct OS command injection in a public-facing web CGI endpoint (apply.cgi) enables remote unauthenticated command execution via crafted HTTP requests.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1