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CVE-2009-4442

15
FAUCET Score

CVE-2009-4442 describes a denial-of-service vulnerability in the Directory Proxy Server (DPS) component of Sun Java System Directory Server Enterprise Edition versions 6.0 through 6.3.1. Attackers can exploit this flaw by establishing numerous connections without performing operations, leading to connection slot exhaustion and preventing legitimate users from accessing the service. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and is easily exploitable over the network with no authentication required, resulting in a partial denial of service. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.0CPE matchmatch criteria
cpe:2.3:a:sun:java_system_directory_server:6.0:*:enterprise:*:*:*:*:*
6.1CPE matchmatch criteria
cpe:2.3:a:sun:java_system_directory_server:6.1:enterprise:*:*:*:*:*:*
6.2CPE matchmatch criteria
cpe:2.3:a:sun:java_system_directory_server:6.2:enterprise:*:*:*:*:*:*
6.3CPE matchmatch criteria
cpe:2.3:a:sun:java_system_directory_server:6.3:enterprise:*:*:*:*:*:*
6.3.1CPE matchmatch criteria
cpe:2.3:a:sun:java_system_directory_server:6.3.1:enterprise:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.48%
Probability of exploitation in next 30 days
EPSS Percentile
82.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0248 is in the 74th percentile among its peer group of 23,725 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/37915
sunsolve.sun.com / search/document.do
Patch
sunsolve.sun.com / search/document.do
PatchVendor Advisory
securityfocus.com / bid/37481
securitytracker.com / id
vupen.com / english/advisories/2009/3647