CVE-2004-0445

lowpriority · track · 24EPSS 0.110 · 96 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

11.0% (96th) EPSS

CVSS 2.6 · low

Is it mine?

21 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

The SYMDNS.SYS driver in 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 allows remote attackers to cause a denial of service (CPU consumption from infinite loop) via a DNS response with a compressed name pointer that points to itself.

cvss

Technical severity, 0–10. One row per scoring source.

2.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.02.6lowAV:N/AC:H/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 4.9 · impact 2.9

v2.02.3lowAV:N/AC:H/Au:N/C:N/I:N/A:P/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USLLM-inferredCWE-400USLLM-inferred

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-299Symantec Multiple Firewall - DNS Response Denial of Servicefunctional · exploit_db

affected products (21)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
symantec client firewall= 5.01nvdUScpe:2.3:a:symantec:client_firewall:*:*:*:*:*:*:*:*
symantec client firewall= 5.1.1nvdUScpe:2.3:a:symantec:client_firewall:*:*:*:*:*:*:*:*
symantec client security= 1.0nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 1.1nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 1.2nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 1.3nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 1.4nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 1.5nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 1.6nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 1.7nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 1.8nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 1.9nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec client security= 2.0nvdUScpe:2.3:a:symantec:client_security:*:*:*:*:*:*:*:*
symantec norton antispam= 2004nvdUScpe:2.3:a:symantec:norton_antispam:*:*:*:*:*:*:*:*
symantec norton internet security= 2002nvdUScpe:2.3:a:symantec:norton_internet_security:*:*:*:*:*:*:*:*
symantec norton internet security= 2003nvdUScpe:2.3:a:symantec:norton_internet_security:*:*:*:*:*:*:*:*
symantec norton internet security= 2004nvdUScpe:2.3:a:symantec:norton_internet_security:*:*:*:*:*:*:*:*
symantec norton personal firewall= 2002nvdUScpe:2.3:a:symantec:norton_personal_firewall:*:*:*:*:*:*:*:*
symantec norton personal firewall= 2003nvdUScpe:2.3:a:symantec:norton_personal_firewall:*:*:*:*:*:*:*:*

showing 20 of 21

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2004-07-07modified 2026-06-16

references (22)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan