CVE-2009-4440
Directory Proxy Server (DPS) in Sun Java System Directory Server Enterprise Edition 6.0 through 6.3.1 does not properly handle multiple client connections within a short time window, which allows remote attackers to hijack the backend connection of an authenticated user, and obtain the privileges of this user, by making a client connection in opportunistic circumstances, related to "long binds," aka Bug Ids 6828462 and 6823593.
Key facts
- CVSS score
- 6.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-362
- EPSS score
- 1.6% (76th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-4407)
- Published
- December 28, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-4407 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- sun / java system directory server
- sun / java system directory server
- sun / java system directory server
- sun / java system directory server
References
- http://secunia.com/advisories/37915
- http://sunsolve.sun.com/search/document.do?assetkey=1-21-141958-01-1(Patch)
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-270789-1(Patch, Vendor Advisory)
- http://www.securityfocus.com/bid/37481
- http://www.securitytracker.com/id?1023389
- http://www.vupen.com/english/advisories/2009/3647
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain