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Fencer Vulns
low 2.6

CVE-2004-0445 json

The SYMDNS.SYS driver in Symantec Norton Internet Security and Professional 2002 through 2004, Norton Personal Firewall 2002 through 2004,…

published 2004-05-20 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0444

cvss
2.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
11.0%
EPSS 11.0% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

Timeline

  1. First public exploit (EDB-299)
  2. Published

Exploit prediction

11.05% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-299 Symantec Multiple Firewall - DNS Response Denial of Service dos, 2004-05-16

CVSS scores

assigned by version score vector
NVD 2.0 2.6 AV:N/AC:H/Au:N/C:N/I:N/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.