Is CVE-2009-3977 being actively exploited?

CVE-2009-3977 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-3977?

CVE-2009-3977 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2009-3977

MEDIUM · CVSS 5.0EPSS 2.3%EU EUVD

Multiple buffer overflows in a certain ActiveX control in ActiveDom.ocx in HP OpenView Network Node Manager (OV NNM) 7.53 might allow remote attackers to cause a denial of service (memory corruption) or have unspecified other impact via a long string argument to the (1) DisplayName, (2) AddGroup, (3) InstallComponent, or (4) Subscribe method. NOTE: this issue is not a vulnerability in many environments, because the control is not marked as safe for scripting and would not execute with default Internet Explorer settings.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-119
EPSS score: 2.3% (84th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-3948)
Published: November 19, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-3948 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

hp / openview network node manager

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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