How severe is CVE-2008-4404?

CVE-2008-4404 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2008-4404 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4404?

CVE-2008-4404 affects Ibm Zseries. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-4404?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2008-4404 published?

CVE-2008-4404 was published on 2008-10-03 and last updated on 2026-06-16.

CVE-2008-4404

CVE-2008-4404 is a critical-severity vulnerability in Ibm Zseries with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Ibm Zseries
Published: 2008-10-03
Last modified: 2026-06-16

Description

The IPv6 Neighbor Discovery Protocol (NDP) implementation on IBM zSeries servers does not validate the origin of Neighbor Discovery messages, which allows remote attackers to cause a denial of service (loss of connectivity) or read private network traffic via a spoofed message that modifies the Forward Information Base (FIB), a related issue to CVE-2008-2476.

Frequently asked questions

What is CVE-2008-4404?: The IPv6 Neighbor Discovery Protocol (NDP) implementation on IBM zSeries servers does not validate the origin of Neighbor Discovery messages, which allows remote attackers to cause a denial of service (loss of connectivity) or read private network traffic via a spoofed message that modifies the Forward Information Base (FIB), a related issue to CVE-2008-2476.
How severe is CVE-2008-4404?: CVE-2008-4404 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2008-4404 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-4404?: CVE-2008-4404 affects Ibm Zseries. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-4404?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2008-4404 published?: CVE-2008-4404 was published on 2008-10-03 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:ibm:zseries:*:*:*:*:*:*:*:*

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