How severe is CVE-2006-5396?

CVE-2006-5396 has a CVSS 2.0 base score of 4.9, rated medium severity.

Is CVE-2006-5396 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-5396?

CVE-2006-5396 affects Sun Solaris. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-5396?

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

When was CVE-2006-5396 published?

CVE-2006-5396 was published on 2006-10-18 and last updated on 2026-06-16.

CVE-2006-5396

CVE-2006-5396 is a medium-severity vulnerability in Sun Solaris with a CVSS 2.0 base score of 4.9. 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 4.9)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sun Solaris
Published: 2006-10-18
Last modified: 2026-06-16

Description

The tcp_fuse_rcv_drain function in the Sun Solaris 10 kernel before 20061017, when TCP Fusion is enabled, allows local users to cause a denial of service (system crash) via a TCP loopback connection with both endpoints on the same system.

Frequently asked questions

What is CVE-2006-5396?: The tcp_fuse_rcv_drain function in the Sun Solaris 10 kernel before 20061017, when TCP Fusion is enabled, allows local users to cause a denial of service (system crash) via a TCP loopback connection with both endpoints on the same system.
How severe is CVE-2006-5396?: CVE-2006-5396 has a CVSS 2.0 base score of 4.9, rated medium severity.
Is CVE-2006-5396 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-5396?: CVE-2006-5396 affects Sun Solaris. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-5396?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-5396 published?: CVE-2006-5396 was published on 2006-10-18 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:sun:solaris:10.0:*:sparc:*:*:*:*:*

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