How severe is CVE-2011-0263?

CVE-2011-0263 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2011-0263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0263?

CVE-2011-0263 primarily affects Hp Openview Network Node Manager. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-0263?

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-2011-0263 published?

CVE-2011-0263 was published on 2011-01-13 and last updated on 2026-06-16.

CVE-2011-0263

CVE-2011-0263 is a critical-severity vulnerability in Hp Openview Network Node Manager with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 17% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Hp Openview Network Node Manager
Published: 2011-01-13
Last modified: 2026-06-16

Description

Multiple stack-based buffer overflows in ovas.exe in the OVAS service in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allow remote attackers to execute arbitrary code via a long (1) Source Node or (2) Destination Node variable.

Frequently asked questions

What is CVE-2011-0263?: Multiple stack-based buffer overflows in ovas.exe in the OVAS service in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allow remote attackers to execute arbitrary code via a long (1) Source Node or (2) Destination Node variable.
How severe is CVE-2011-0263?: CVE-2011-0263 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2011-0263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0263?: CVE-2011-0263 primarily affects Hp Openview Network Node Manager. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-0263?: 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-2011-0263 published?: CVE-2011-0263 was published on 2011-01-13 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:hp:openview_network_node_manager:7.51:*:*:*:*:*:*:*
cpe:2.3:a:hp:openview_network_node_manager:7.53:*:*:*:*:*:*:*

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