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CVE-2006-2446
Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other…
- 5.4MediumCVSS base score
- 3.4%Exploitation in 30 daysEPSS · top 11% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other versions, allows remote attackers to cause a denial of service (crash), as demonstrated using the TCP stress tests from the LTP test suite.
Timeline
ID reserved
By redhat
- 3 months later
· 3 months later
Published
- 18 years later
· 18 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.4 | AV:N/AC:H/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 3.4% · top 11% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Affected products
n/a
- affected n/a
References
12
- MDKSA-2007:025 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=192779 (opens in a new tab)x_refsource_MISCx_transferred
- DSA-1183 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 22082 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2006:0575 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- oval:org.mitre.oval:def:9117 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 21465 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 19475 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
- 22417 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 22093 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-1184 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_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)
- EUVD EUVD-2006-2447 (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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2006-2446)Record last updated .