Is CVE-2009-1093 in the CISA KEV catalog?

No. CVE-2009-1093 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-1093?

CVE-2009-1093 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2009-1093?

CVE-2009-1093 has an EPSS score of 3.38% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate 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.

CVE & CISA-KEV Catalog

CVE-2009-1093

MEDIUMEPSS 87th pctl

5.0

CVSS v2

NVD

Description

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).

CWE-16

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.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

3.38%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

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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.