CVE-2004-0444

What it is

Multiple vulnerabilities in SYMDNS.SYS for Symantec Norton Internet Security and Professional 2002 through 2004, Norton Personal Firewall 2002 through 2004, Norton AntiSpam 2004, Client Firewall 5.01 and 5.1.1, and Client Security 1.0 through 2.0 allow remote attackers to cause a denial of service or execute arbitrary code via (1) a manipulated length byte in the first-level decoding routine for NetBIOS Name Service (NBNS) that modifies an index variable and leads to a stack-based buffer overflow, (2) a heap-based corruption problem in an NBNS response that is missing certain RR fields, and (3) a stack-based buffer overflow in the DNS component via a Resource Record (RR) with a long canonical name (CNAME) field composed of many smaller components.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

12.8% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2004-07-07 04:00 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:05 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 12.8% in the next 30 days (EPSS).
• Severity: 10.0 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2004-07-07 04:00 UTC

Last modified

2026-06-16 22:05 UTC

Exploit probability

12.8% · EPSS, next 30 days

Record status

Modified

Affected

• Symantec Client Firewall 5.01
• Symantec Client Firewall 5.1.1
• Symantec Client Security 1.0
• Symantec Client Security 1.1
• Symantec Client Security 1.2
• Symantec Client Security 1.3
• Symantec Client Security 1.4
• Symantec Client Security 1.5

Attack profile CVSS 2.0 · 10.0

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2004-0444.md and follow it. Check whether this project is affected by CVE-2004-0444. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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