How severe is CVE-2000-0558?

CVE-2000-0558 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2000-0558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0558?

CVE-2000-0558 affects Hp Openview Network Node Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2000-0558?

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-2000-0558 published?

CVE-2000-0558 was published on 2000-06-06 and last updated on 2026-06-16.

CVE-2000-0558

CVE-2000-0558 is a critical-severity vulnerability in Hp Openview Network Node Manager 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.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Hp Openview Network Node Manager
Published: 2000-06-06
Last modified: 2026-06-16

Description

Buffer overflow in HP Openview Network Node Manager 6.1 allows remote attackers to execute arbitrary commands via the Alarm service (OVALARMSRV) on port 2345.

Frequently asked questions

What is CVE-2000-0558?: Buffer overflow in HP Openview Network Node Manager 6.1 allows remote attackers to execute arbitrary commands via the Alarm service (OVALARMSRV) on port 2345.
How severe is CVE-2000-0558?: CVE-2000-0558 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2000-0558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0558?: CVE-2000-0558 affects Hp Openview Network Node Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-0558?: 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-2000-0558 published?: CVE-2000-0558 was published on 2000-06-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:hp:openview_network_node_manager:6.1:*:*:*:*:*:*:*

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