CVE-2006-4175

The LDAP server (ns-slapd) in Sun Java System Directory Server 5.2 Patch4 and earlier and ONE Directory Server 5.1 and 5.2 allows remote attackers to cause a denial of service (crash) via malformed queries, probably malformed BER queries, which trigger a free of uninitialized memory locations.

Published: 2007-03-26 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-4175 is rated Moderate Risk (59.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.82%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-4175

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 1.60% 1.82% +0.21%
2 2025-03-29 1.82% 1.60% -0.21%
3 2025-03-19 — 1.82% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-4175

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2006-4175

OS Trackers for CVE-2006-4175

vendor priority summary link
alpine — CVE-2006-4175: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-4175

Affected software / configurations for CVE-2006-4175

Vendor Product Version Raw CPE
sun java_system_directory_server 5.2 cpe:2.3:a:sun:java_system_directory_server:5.2:*:*:*:*:*:*:*
sun one_directory_server 5.1 cpe:2.3:a:sun:one_directory_server:5.1:*:*:*:*:*:*:*
sun one_directory_server 5.2 cpe:2.3:a:sun:one_directory_server:5.2:*:*:*:*:*:*:*

References for CVE-2006-4175

cvelogic Threat Intelligence