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CVE-2009-0609

20
FAUCET Score

CVE-2009-0609 describes a denial-of-service vulnerability affecting Sun Java System Directory Proxy Server versions 6.0 through 6.3, specifically when using a JDBC data source. Remote attackers can trigger a JDBC backend outage by sending crafted LDAP requests containing excessively long values in ADD operations or long string attributes. This vulnerability has a CVSS score of 7.8 (High), indicating it can be exploited remotely with low complexity and without authentication, leading to a complete loss of availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage 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:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.54%
Probability of exploitation in next 30 days
EPSS Percentile
83.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0254 is in the 70th percentile among its peer group of 51,485 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

secunia.com / advisories/33923
Vendor Advisory
sunsolve.sun.com / search/document.do
PatchVendor Advisory
sunsolve.sun.com / search/document.do
PatchVendor Advisory
securityfocus.com / bid/33761