CVE-2009-1093

Jdk vulnerability

CVSS

5.0

EPSS

3.4%

EPSS pct

88th

Exploited

No known

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).

Affected vendor

Sun

Affected product

Jdk

CVSS vector

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

Weakness type (CWE)

CWE-16

Published

2009-03-25

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 3.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2009-1093

Confirm whether Sun Jdk is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2009-1093.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-1093

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-1093 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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