How severe is CVE-2006-2446?

CVE-2006-2446 has a CVSS 2.0 base score of 5.4, rated medium severity.

Is CVE-2006-2446 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-2446?

CVE-2006-2446 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-2446?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-2446 published?

CVE-2006-2446 was published on 2006-08-15 and last updated on 2026-06-16.

CVE-2006-2446

CVE-2006-2446 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.4)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Linux Linux Kernel
Published: 2006-08-15
Last modified: 2026-06-16

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.

Frequently asked questions

What is 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 versions, allows remote attackers to cause a denial of service (crash), as demonstrated using the TCP stress tests from the LTP test suite.
How severe is CVE-2006-2446?: CVE-2006-2446 has a CVSS 2.0 base score of 5.4, rated medium severity.
Is CVE-2006-2446 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-2446?: CVE-2006-2446 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-2446?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-2446 published?: CVE-2006-2446 was published on 2006-08-15 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:2.6.9:2.6.20:*:*:*:*:*:*

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