CVE-2011-0266
CriticalPublic exploitBuffer overflow in nnmRptConfig.exe in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allows remote attackers to execute arbitrary code via a long nameParams parameter, a different vulnerability than CVE-2011-0267.2.
Published Jan 13, 2011 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2011-0266 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Openview Network Node Manager (Hp).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 70% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
70%
Higher than 99.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2011-0266 brief as a PDF
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Description
Buffer overflow in nnmRptConfig.exe in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allows remote attackers to execute arbitrary code via a long nameParams parameter, a different vulnerability than CVE-2011-0267.2.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Openview Network Node ManagerHp | 7.51, 7.53 | n/a |
Timeline
Publicly disclosed
Jan 13, 2011
Last updated
Apr 28, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- exploitMSF hp_nnm_nnmrptconfig_nameparams.rb
- exploitExploitDB-17028
- other8151
- otherhp-opennnm-nameparams-bo(64650)
- otherHPSBMA02621
FAQ
Common Questions.
Buffer overflow in nnmRptConfig.exe in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allows remote attackers to execute arbitrary code via a long nameParams parameter, a different vulnerability than CVE-2011-0267.2.
Affected: Openview Network Node Manager (Hp) versions 7.51, 7.53. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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