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CVE-2006-2446

16
FAUCET Score

CVE-2006-2446 describes a race condition within the Linux kernel's socket buffer handling, specifically between the kfree_skb and __skb_unlink functions in version 2.6.9 and potentially others. This flaw allows remote attackers to trigger a denial of service (system crash). With a CVSS score of 5.4, this vulnerability has a network attack vector and high attack complexity, leading to a complete loss of availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.9:2.6.20:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.4MEDIUM

AV:N/AC:H/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.47%
Probability of exploitation in next 30 days
EPSS Percentile
87.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0347 is in the 83rd percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel-0:2.6.9-42.EL
View patch

Vendor Advisories (1)

redhatCVE-2006-2446Moderate

security flaw

Aug 10, 2006

References

bugzilla.redhat.com / bugzilla/show_bug.cgi
Patch
secunia.com / advisories/21465
secunia.com / advisories/22082
secunia.com / advisories/22093
secunia.com / advisories/22417
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9117
support.avaya.com / elmodocs2/security/ASA-2006-200.htm
debian.org / security/2006/dsa-1183
debian.org / security/2006/dsa-1184
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2006-0575.html
Patch
securityfocus.com / bid/19475