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Vulnerability record · CVE-2009-0921 · published 25 March 2009

CVE-2009-0921: Hp network node manager memory buffer overflow vulnerability

Hp · Network Node Manager

Multiple heap-based buffer overflows in OvCgi/Toolbar.exe in HP OpenView Network Node Manager (OV NNM) 7.01, 7.51, and 7.53 allow remote attackers to execute arbitrary code via (1) a long OvAcceptLang cookie, which triggers the error in ov.dll and ovwww.dll, or (2) a long Accept-Language HTTP header, which triggers the error in ovwww.dll or libovwww.so.4.

10.0 CVSS 2.0 High EPSS 13% · top 3.7% CWE-119 · Memory buffer overflow
10.0CVSS 2.0 base score
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
18References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Multiple heap-based buffer overflows in OvCgi/Toolbar.exe in HP OpenView Network Node Manager (OV NNM) 7.01, 7.51, and 7.53 allow remote attackers to execute arbitrary code via (1) a long OvAcceptLang cookie, which triggers the error in ov.dll and ovwww.dll, or (2) a long Accept-Language HTTP header, which triggers the error in ovwww.dll or libovwww.so.4.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://marc.info/?l=bugtraq&m=123791084113871&w=2
http://secunia.com/advisories/34444
http://www.coresecurity.com/content/openview-buffer-overflows Exploit
http://www.securityfocus.com/archive/1/502054/100/0/threaded
http://www.securityfocus.com/bid/34134
http://www.securityfocus.com/bid/34135
http://www.securitytracker.com/id?1021883
http://www.vupen.com/english/advisories/2009/0819 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/49363
http://marc.info/?l=bugtraq&m=123791084113871&w=2
http://secunia.com/advisories/34444
http://www.coresecurity.com/content/openview-buffer-overflows Exploit
http://www.securityfocus.com/archive/1/502054/100/0/threaded
http://www.securityfocus.com/bid/34134
http://www.securityfocus.com/bid/34135
http://www.securitytracker.com/id?1021883
http://www.vupen.com/english/advisories/2009/0819 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/49363

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-0921), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.