CVE-2009-1093
MEDIUMEPSS 88th pctlDescription
LdapCtx in the LDAP service in Java SE Development Kit (JDK) and Java Runtime Environment (JRE) 5.0 Update 17 and earlier; 6 Update 12 and earlier; SDK and JRE 1.3.1_24 and earlier; and 1.4.2_19 and earlier does not close the connection when initialization fails, which allows remote attackers to cause a denial of service (LDAP service hang).
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
Elevated risk: more likely to be exploited than 88% of all known CVEs.
References
- h20000.www2.hp.com
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- marc.info
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- security.gentoo.org
- support.avaya.com
- support.avaya.com
- debian.org
- mandriva.com
- mandriva.com
- oracle.com
- redhat.com
- redhat.com
- redhat.com
- securityfocus.com
- securityfocus.com
- securitytracker.com
- ubuntu.com
- vmware.com
- vupen.com
- vupen.com
- oval.cisecurity.org
- oval.cisecurity.org
- rhn.redhat.com
- rhn.redhat.com
Related Vulnerabilities
Other CWE-16 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2004-2687 | High | 9.3 | 88% | - | Fix |
| CVE-2009-2335 | Medium | 5.0 | 85% | - | Fix |
| CVE-2006-3677 | High | 7.5 | 78% | - | Fix |
| CVE-2011-4404 | Medium | 5.0 | 60% | - | - |
| CVE-2006-0848 | Medium | 5.1 | 58% | - | - |
| CVE-2007-3898 | Medium | 6.4 | 52% | - | - |
Common questions
How do I fix CVE-2009-1093?
No published fix for CVE-2009-1093 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2009-1093 being actively exploited?
Not that we know of. CVE-2009-1093 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 3.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 88% of all scored CVEs.
How severe is CVE-2009-1093?
CVE-2009-1093 has a CVSS v2 base score of 5.0, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2009-1093
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.