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CVE-2004-0626
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables and TCP options rules, allows remote…
Medium5.0EPSS 2.8%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 2.8% · top 14% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (6)
- FEDORA-2004-202 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- GLSA-200407-12 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 20040630 Remote DoS vulnerability in Linux kernel 2.6.x (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- linux-tcpfindoption-dos(16554) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- CLA-2004:852 (opens in a new tab)vendor-advisoryx_refsource_CONECTIVAx_transferred
- SUSE-SA:2004:020 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2004-0626)Record last updated .