Skip to content
Fencer Vulns
critical 10.0

CVE-2009-4178 in the critical feed json

Heap-based buffer overflow in OvWebHelp.exe in HP OpenView Network Node Manager (OV NNM) 7.01, 7.51, and 7.53 allows remote attackers to ex…

published 2009-12-10 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-4148

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
74.0%
EPSS 74.0% chance of exploitation in 30 days, percentile 99.4%
public exploits
3
Metasploit, Exploit-DB

Summary

Heap-based buffer overflow in OvWebHelp.exe in HP OpenView Network Node Manager (OV NNM) 7.01, 7.51, and 7.53 allows remote attackers to execute arbitrary code via a long Topic parameter.

Patch / fix

Timeline

  1. First public exploit (Metasploit exploit/windows/http/hp_nnm_ovwebhelp)
  2. Published

Exploit prediction

74.02% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/windows/http/hp_nnm_ovwebhelp HP OpenView Network Node Manager OvWebHelp.exe CGI Buffer Overflow metasploit exploit, great rank, 2009-12-09
  • EDB-16792 HP OpenView Network Node Manager (OV NNM) - 'OvWebHelp.exe' CGI Buffer Overflow (Metasploit) remote, 2010-11-11
  • EDB-11974 HP OpenView Network Node Manager (OV NNM) - 'OvWebHelp.exe' CGI Topic Overflow remote, 2010-03-30

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.