CVE-2009-4176

Multiple heap-based buffer overflows in ovsessionmgr.exe in HP OpenView Network Node Manager (OV NNM) 7.01, 7.51, and 7.53 allow remote attackers to execute arbitrary code via a long (1) userid or (2) passwd parameter to ovlogin.exe.

Published: 2009-12-10 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4176 is rated High Risk (68.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 11.79%, 96th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-4176

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 23.54% 11.79% -11.75%
2 2026-05-01 25.56% 23.54% -2.02%
3 2025-05-03 — 25.56% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4176

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2009-4176

Affected software / configurations for CVE-2009-4176

Vendor Product Version Raw CPE
hp openview_network_node_manager 7.0.1 cpe:2.3:a:hp:openview_network_node_manager:7.0.1:*:hp_ux:*:*:*:*:*
hp openview_network_node_manager 7.0.1 cpe:2.3:a:hp:openview_network_node_manager:7.0.1:*:linux:*:*:*:*:*
hp openview_network_node_manager 7.0.1 cpe:2.3:a:hp:openview_network_node_manager:7.0.1:*:solaris:*:*:*:*:*
hp openview_network_node_manager 7.0.1 cpe:2.3:a:hp:openview_network_node_manager:7.0.1:*:windows:*:*:*:*:*
hp openview_network_node_manager 7.51 cpe:2.3:a:hp:openview_network_node_manager:7.51:-:hp-ux:*:*:*:*:*
hp openview_network_node_manager 7.51 cpe:2.3:a:hp:openview_network_node_manager:7.51:-:linux:*:*:*:*:*
hp openview_network_node_manager 7.51 cpe:2.3:a:hp:openview_network_node_manager:7.51:-:solaris:*:*:*:*:*
hp openview_network_node_manager 7.51 cpe:2.3:a:hp:openview_network_node_manager:7.51:-:windows:*:*:*:*:*
hp openview_network_node_manager 7.53 cpe:2.3:a:hp:openview_network_node_manager:7.53:-:hp-ux:*:*:*:*:*
hp openview_network_node_manager 7.53 cpe:2.3:a:hp:openview_network_node_manager:7.53:-:linux:*:*:*:*:*
hp openview_network_node_manager 7.53 cpe:2.3:a:hp:openview_network_node_manager:7.53:-:solaris:*:*:*:*:*
hp openview_network_node_manager 7.53 cpe:2.3:a:hp:openview_network_node_manager:7.53:-:windows:*:*:*:*:*

References for CVE-2009-4176

cvelogic Threat Intelligence