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CVE-2009-0921

30
FAUCET Score

CVE-2009-0921 describes multiple heap-based buffer overflows in HP OpenView Network Node Manager (OV NNM) versions 7.01, 7.51, and 7.53. These vulnerabilities allow remote attackers to execute arbitrary code by sending crafted HTTP requests containing excessively long OvAcceptLang cookies or Accept-Language headers. With a CVSS score of 10.0, this vulnerability is critical, indicating a network-based attack with low complexity, requiring no authentication, and leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.0.1CPE matchmatch criteria
cpe:2.3:a:hp:network_node_manager:7.0.1:*:*:*:*:*:*:*
7.5.1CPE matchmatch criteria
cpe:2.3:a:hp:network_node_manager:7.5.1:*:*:*:*:*:*:*
7.5.3CPE matchmatch criteria
cpe:2.3:a:hp:network_node_manager:7.5.3:*:*:*:*:*:*:*

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
13.24%
Probability of exploitation in next 30 days
EPSS Percentile
96.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1324 is in the 94th percentile among its peer group of 51,506 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

marc.info
secunia.com / advisories/34444
exchange.xforce.ibmcloud.com / vulnerabilities/49363
coresecurity.com / content/openview-buffer-overflows
Exploit
securityfocus.com / archive/1/502054/100/0/threaded
securityfocus.com / bid/34134
securityfocus.com / bid/34135
securitytracker.com / id
vupen.com / english/advisories/2009/0819
Vendor Advisory