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Fencer Vulns
critical 10.0

CVE-2009-4177 in the critical feed json

Buffer overflow in webappmon.exe in HP OpenView Network Node Manager (OV NNM) 7.01, 7.51, and 7.53 allows remote attackers to execute arbit…

published 2009-12-10 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-4147

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.5%
EPSS 13.5% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

Buffer overflow in webappmon.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 HTTP Host header.

Patch / fix

Exploit prediction

13.45% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

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.