CVE-2004-0445

Exp

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.

Published: 2004-07-07 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-0445 is rated Exploit Available (58.6/100): CVSS Low severity, with high exploitation likelihood (EPSS 34.32%, 97th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2004-0445

EDB-ID Source Kind Published Link
299 exploit_db edb 2004-05-16 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2004-0445

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-23 35.05% 34.32% -0.72%
2 2025-03-30 34.87% 35.05% +0.18%
3 2025-03-29 — 34.87% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-0445

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.6 2.0 LOW
AV:N/AC:H/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 4.9 2.9 [email protected]

Weakness enumeration for CVE-2004-0445

Affected software / configurations for CVE-2004-0445

Vendor Product Version Raw CPE
symantec client_firewall 5.01 cpe:2.3:a:symantec:client_firewall:5.01:*:*:*:*:*:*:*
symantec client_firewall 5.1.1 cpe:2.3:a:symantec:client_firewall:5.1.1:*:*:*:*:*:*:*
symantec client_security 1.0 cpe:2.3:a:symantec:client_security:1.0:*:*:*:*:*:*:*
symantec client_security 1.1 cpe:2.3:a:symantec:client_security:1.1:*:*:*:*:*:*:*
symantec client_security 1.2 cpe:2.3:a:symantec:client_security:1.2:*:*:*:*:*:*:*
symantec client_security 1.3 cpe:2.3:a:symantec:client_security:1.3:*:*:*:*:*:*:*
symantec client_security 1.4 cpe:2.3:a:symantec:client_security:1.4:*:*:*:*:*:*:*
symantec client_security 1.5 cpe:2.3:a:symantec:client_security:1.5:*:*:*:*:*:*:*
symantec client_security 1.6 cpe:2.3:a:symantec:client_security:1.6:*:*:*:*:*:*:*
symantec client_security 1.7 cpe:2.3:a:symantec:client_security:1.7:*:*:*:*:*:*:*
symantec client_security 1.8 cpe:2.3:a:symantec:client_security:1.8:*:*:*:*:*:*:*
symantec client_security 1.9 cpe:2.3:a:symantec:client_security:1.9:*:*:*:*:*:*:*
symantec client_security 2.0 cpe:2.3:a:symantec:client_security:2.0:*:*:*:*:*:*:*
symantec norton_antispam 2004 cpe:2.3:a:symantec:norton_antispam:2004:*:*:*:*:*:*:*
symantec norton_internet_security 2002 cpe:2.3:a:symantec:norton_internet_security:2002:*:*:*:*:*:*:*
symantec norton_internet_security 2002 cpe:2.3:a:symantec:norton_internet_security:2002:*:pro:*:*:*:*:*
symantec norton_internet_security 2003 cpe:2.3:a:symantec:norton_internet_security:2003:*:*:*:*:*:*:*
symantec norton_internet_security 2003 cpe:2.3:a:symantec:norton_internet_security:2003:*:pro:*:*:*:*:*
symantec norton_internet_security 2004 cpe:2.3:a:symantec:norton_internet_security:2004:*:*:*:*:*:*:*
symantec norton_internet_security 2004 cpe:2.3:a:symantec:norton_internet_security:2004:*:pro:*:*:*:*:*
symantec norton_personal_firewall 2002 cpe:2.3:a:symantec:norton_personal_firewall:2002:*:*:*:*:*:*:*
symantec norton_personal_firewall 2003 cpe:2.3:a:symantec:norton_personal_firewall:2003:*:*:*:*:*:*:*
symantec norton_personal_firewall 2004 cpe:2.3:a:symantec:norton_personal_firewall:2004:*:*:*:*:*:*:*

References for CVE-2004-0445

cvelogic Threat Intelligence