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CVE-2011-4789

83
FAUCET Score

CVE-2011-4789 describes a critical stack-based buffer overflow vulnerability in magentservice.exe within HP LoadRunner 11.00 before patch 4, originally misidentified as HP Diagnostics Server. This flaw allows remote, unauthenticated attackers to execute arbitrary code with maximum impact (CVSS 10.0) by sending a crafted packet with a malicious size value. While not listed on the KEV catalog, public exploit modules, including a Metasploit module, are readily available, indicating a high potential for exploitation despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:hp:diagnostics:*:*:*:*:*:*:*:*

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
64.80%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: HP Diagnostics Server magentservice.exe Overflow · Jan 12, 2012
ExploitDB: EDB-18423 · Jan 27, 2012
This CVE's current EPSS score of 0.6480 is in the 99th percentile among its peer group of 51,466 CVEs.

Social Chatter

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

h20565.www2.hp.com / portal/site/hpsc/public/kb/docDisplay
osvdb.org / 78309
securityfocus.com / bid/51398
zerodayinitiative.com / advisories/ZDI-12-016