CVE-2004-0626 json
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables and TCP options rules, allows remote attac…
published 2004-07-06 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0625
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.8%
- EPSS 2.8% chance of exploitation in 30 days, percentile 86%
- public exploits
- 0
- none known
Summary
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables and TCP options rules, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a large option length that produces a negative integer after a casting operation to the char type.
Patch / fix
Exploit prediction
2.76% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Technology feeds
References
-
lwn.net
/Articles/91964/
vendor-advisory, patch
-
gentoo.org
/security/en/glsa/glsa-200407-12.xml
vendor-advisory, patch
-
distro.conectiva.com.br
/atualizacoes/?id=a&anuncio=000852
vendor-advisory, patch
-
novell.com
/linux/security/advisories/2004_20_kernel.html
vendor-advisory
-
marc.info
/?l=bugtraq&m=108861141304495&w=2
mailing-list
-
exchange.xforce.ibmcloud.com
/vulnerabilities/16554
vdb-entry
Sources
- CVE List CVE-2004-0626
- NVD CVE-2004-0626
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Fix old broken CPEs.