CVE-2004-0375

mediumpriority · track · 33EPSS 0.088 · 95 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

8.83% (95th) EPSS

CVSS 5 · medium

Is it mine?

9 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

SYMNDIS.SYS in Symantec Norton Internet Security 2003 and 2004, Norton Personal Firewall 2003 and 2004, Client Firewall 5.01 and 5.1.1, and Client Security 1.0 and 1.1 allow remote attackers to cause a denial of service (infinite loop) via a TCP packet with (1) SACK option or (2) Alternate Checksum Data option followed by a length of zero.

cvss

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

5.0

010

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

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v2.04.5mediumAV:N/AC:L/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-23846Symantec Client Firewall Products 5 - 'SYMNDIS.SYS' Driver Remote Denial of Servicefunctional · exploit_db

affected products (9)

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 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= 2003nvdUScpe:2.3:a:symantec:norton_personal_firewall:*:*:*:*:*:*:*:*
symantec norton personal firewall= 2004nvdUScpe:2.3:a:symantec:norton_personal_firewall:*:*:*:*:*:*:*:*

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 2004-08-18modified 2026-06-16

references (16)

External citations — patches, advisories, analysis.

scry

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