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Fencer Vulns
medium 5.0

CVE-2004-0403 json

Racoon before 20040408a allows remote attackers to cause a denial of service (memory consumption) via an ISAKMP packet with a large length…

published 2004-04-16 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0403

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

Racoon before 20040408a allows remote attackers to cause a denial of service (memory consumption) via an ISAKMP packet with a large length field.

Patch / fix

  • ipsec-tools RHEL 3 0.2.5-0.4

red hat advisories RHSA-2004:165

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2004-0403 updated

security flaw

  • Red Hat Desktop version 3 ipsec-tools 0.2.5-0.4 Red Hat Enterprise Linux AS version 3 ipsec-tools 0.2.5-0.4 Red Hat Enterprise Linux ES version 3 ipsec-tools 0.2.5-0.4 Red Hat Enterprise Linux WS version 3 ipsec-tools 0.2.5-0.4
    fixed: vendor fix RHSA-2004:165

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.85% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • kame.net http://www.kame.net/dev/cvsweb2.cgi/kame/kame/kame/racoon/isakmp.c.diff?r1=1.180&r2=1.181 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/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.