CVE-2003-0110: n/a vulnerability

CVE-2003-0110: The Winsock Proxy service in Microsoft Proxy Server 2.0 and the Microsoft Firewall service in Internet Secu...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 01:43 UTC (UTC+00:00)

Security readout for executives and security teams

This is a denial-of-service flaw in legacy Microsoft proxy and firewall products. A remote attacker could send a spoofed malformed UDP packet to port 1745 and cause high CPU use or a packet storm, disrupting service availability. Exposure is most likely in legacy environments still running Microsoft Proxy Server 2.0 or ISA Server 2000 with UDP port 1745 reachable from untrusted networks. Prioritize if these legacy proxy or firewall products still exist in production or exposed network segments. Otherwise, handle as legacy hygiene and decommissioning work. Mitigation focus: Review and apply Microsoft MS03-012 vendor guidance where applicable.; Retire or isolate Microsoft Proxy Server 2.0 and ISA Server 2000 systems.; Restrict UDP port 1745 from untrusted networks..

Prepared: Jun 30, 2026, 11:41 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 15, 2003, 04:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:406CVE reference · vdb-entry, signature
MS03-012CVE reference · vendor-advisory, x_refsource_MS

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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