CVE-2004-1473

What it is

Symantec Enterprise Firewall/VPN Appliances 100, 200, and 200R running firmware before 1.63 and Gateway Security 320, 360, and 360R running firmware before 622 allow remote attackers to bypass filtering and determine whether the device is running services such as tftpd, snmpd, or isakmp via a UDP port scan with a source port of UDP 53.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

3.9% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2004-12-31 05:00 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:07 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.9% in the next 30 days (EPSS).
• Severity: 5.0 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2004-12-31 05:00 UTC

Last modified

2026-06-16 22:07 UTC

Exploit probability

3.9% · EPSS, next 30 days

Record status

Modified

Affected

• Symantec Firewall Vpn Appliance 100
• Symantec Firewall Vpn Appliance 200
• Symantec Firewall Vpn Appliance 200r
• Symantec Gateway Security 320
• Symantec Gateway Security 360
• Symantec Gateway Security 360r
• Symantec Nexland Isb Soho Firewall Appliance
• Symantec Nexland pro100 Firewall Appliance

Attack profile CVSS 2.0 · 5.0

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

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-2004-1473.md and follow it. Check whether this project is affected by CVE-2004-1473. 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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