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CVE-2003-0110

5.0 · MEDIUM

The Winsock Proxy service in Microsoft Proxy Server 2.0 and the Microsoft Firewall service in Internet Security and Acceleration (ISA) Server 2000 allow remote attackers to cause a denial of servic…

Published May 5, 2003microsoftEPSS 17.97%

Overview

CVE-2003-0110 is a medium-severity vulnerability affecting microsoft isa_server. It was published on May 5, 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

The Winsock Proxy service in Microsoft Proxy Server 2.0 and the Microsoft Firewall service in Internet Security and Acceleration (ISA) Server 2000 allow remote attackers to cause a denial of service (CPU consumption or packet storm) via a spoofed, malformed packet to UDP port 1745.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update isa_server 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

Refmarc.info/?l=bugtraq&m=104994487012027&w=2Refwww.idefense.com/advisory/04.09.03.txtRefdocs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-012Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A406Refmarc.info/?l=bugtraq&m=104994487012027&w=2Refwww.idefense.com/advisory/04.09.03.txtRefdocs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-012Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A406

How CyberStrike helps

Frequently asked questions

What is CVE-2003-0110?

CVE-2003-0110 is a medium-severity vulnerability affecting microsoft isa_server. It was published on May 5, 2003 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2003-0110?

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-2003-0110?

Check the references section for vendor advisories and patches from microsoft. Update isa_server 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-2003-0110?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2003-0110 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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