How severe is CVE-2006-4820?

CVE-2006-4820 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2006-4820 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4820?

CVE-2006-4820 primarily affects Hp Hp-ux. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-4820?

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

When was CVE-2006-4820 published?

CVE-2006-4820 was published on 2006-09-15 and last updated on 2026-06-16.

CVE-2006-4820

CVE-2006-4820 is a low-severity vulnerability in Hp Hp-ux with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Hp Hp-ux
Published: 2006-09-15
Last modified: 2026-06-16

Description

Unspecified vulnerability in X.25 on HP-UX B.11.00, B.11.11, and B.11.23 allows local users to cause an unspecified denial of service via unknown vectors.

Frequently asked questions

What is CVE-2006-4820?: Unspecified vulnerability in X.25 on HP-UX B.11.00, B.11.11, and B.11.23 allows local users to cause an unspecified denial of service via unknown vectors.
How severe is CVE-2006-4820?: CVE-2006-4820 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2006-4820 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4820?: CVE-2006-4820 primarily affects Hp Hp-ux. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4820?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4820 published?: CVE-2006-4820 was published on 2006-09-15 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:o:hp:hp-ux:11.00:*:*:*:*:*:*:*
cpe:2.3:o:hp:hp-ux:11.11:*:*:*:*:*:*:*
cpe:2.3:o:hp:hp-ux:11.23:*:ia64_64-bit:*:*:*:*:*

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