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CVE-2009-4178

81
FAUCET Score

CVE-2009-4178 describes a critical heap-based buffer overflow vulnerability in OvWebHelp.exe within HP OpenView Network Node Manager (OV NNM) versions 7.01, 7.51, and 7.53. This flaw allows unauthenticated remote attackers to execute arbitrary code by supplying an excessively long "Topic" parameter. With a CVSS score of 10.0, this vulnerability is easily exploitable over the network with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, exploit modules are publicly available in Metasploit and ExploitDB, indicating a high potential for exploitation, despite a lack of significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.0.1CPE matchmatch criteria
cpe:2.3:a:hp:openview_network_node_manager:7.0.1:*:hp_ux:*:*:*:*:*
7.0.1CPE matchmatch criteria
cpe:2.3:a:hp:openview_network_node_manager:7.0.1:*:linux:*:*:*:*:*
7.0.1CPE matchmatch criteria
cpe:2.3:a:hp:openview_network_node_manager:7.0.1:*:solaris:*:*:*:*:*
7.0.1CPE matchmatch criteria
cpe:2.3:a:hp:openview_network_node_manager:7.0.1:*:windows:*:*:*:*:*
7.51CPE matchmatch criteria
cpe:2.3:a:hp:openview_network_node_manager:7.51:-:hp-ux:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
74.02%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: HP OpenView Network Node Manager OvWebHelp.exe CGI Buffer Overflow · Dec 9, 2009
ExploitDB: EDB-16792 · Nov 11, 2010
This CVE's current EPSS score of 0.7402 is in the 99th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

dvlabs.tippingpoint.com / advisory/TPTI-09-11
Patch
h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
PatchVendor Advisory
marc.info
exchange.xforce.ibmcloud.com / vulnerabilities/54659
securityfocus.com / archive/1/508354/100/0/threaded
securityfocus.com / bid/37261
securityfocus.com / bid/37340