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CVE-2003-1250

5.0 · MEDIUM

Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP SYN, packets allows remote attackers to cause a denial of service (crash) via a flood of TCP SYN pa…

Published Dec 31, 2003efficient_networksEPSS 1.81%

Overview

CVE-2003-1250 is a medium-severity vulnerability affecting efficient_networks 5861_dsl_router. It was published on December 31, 2003 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP SYN, packets allows remote attackers to cause a denial of service (crash) via a flood of TCP SYN packets to the WAN interface using a port scanner such as nmap.

Remediation

Check the references section for vendor advisories and patches from efficient_networks. Update 5861_dsl_router to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refarchives.neohapsis.com/archives/vulnwatch/2003-q1/0015.htmlRefsecuritytracker.com/id?1005980Refwww.iss.net/security_center/static/11032.phpRefwww.securityfocus.com/archive/1/306081Refwww.securityfocus.com/archive/1/308008Refwww.securityfocus.com/bid/6573Refwww.securitytracker.com/id?1005910Refarchives.neohapsis.com/archives/vulnwatch/2003-q1/0015.htmlRefsecuritytracker.com/id?1005980Refwww.iss.net/security_center/static/11032.php

How CyberStrike helps

Frequently asked questions

What is CVE-2003-1250?

CVE-2003-1250 is a medium-severity vulnerability affecting efficient_networks 5861_dsl_router. It was published on December 31, 2003 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2003-1250?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2003-1250?

Check the references section for vendor advisories and patches from efficient_networks. Update 5861_dsl_router to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2003-1250?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2003-1250 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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