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I. Basic Information for CVE-2025-27497
Vulnerability Information

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Vulnerability Title
OpenDJ Denial of Service (Dos) using alias loop
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenDJ is an LDAPv3 compliant directory service. OpenDJ prior to 4.9.3 contains a denial-of-service (DoS) vulnerability that causes the server to become unresponsive to all LDAP requests without crashing or restarting. This issue occurs when an alias loop exists in the LDAP database. If an ldapsearch request is executed with alias dereferencing set to "always" on this alias entry, the server stops responding to all future requests. Fortunately, the server can be restarted without data corruption. This vulnerability is fixed in 4.9.3.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenDJ 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenDJ是Open Identity Platform开源的一个目录服务。 OpenDJ 4.9.3之前版本存在安全漏洞,该漏洞源于别名循环导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
OpenIdentityPlatformOpenDJ < 4.9.3 -
II. Public POCs for CVE-2025-27497
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III. Intelligence Information for CVE-2025-27497
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