Vulnerability Details CVE-2025-61912
python-ldap is a lightweight directory access protocol (LDAP) client API for Python. In versions prior to 3.4.5, ldap.dn.escape_dn_chars() escapes \x00 incorrectly by emitting a backslash followed by a literal NUL byte instead of the RFC-4514 hex form \00. Any application that uses this helper to construct DNs from untrusted input can be made to consistently fail before a request is sent to the LDAP server (e.g., AD), resulting in a client-side denial of service. Version 3.4.5 contains a patch for the issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 21.8%
CVSS Severity
CVSS v3 Score 5.3
References
Products affected by CVE-2025-61912
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cpe:2.3:a:python-ldap:python-ldap:2.3.0
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cpe:2.3:a:python-ldap:python-ldap:2.3.10
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cpe:2.3:a:python-ldap:python-ldap:2.3.11
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cpe:2.3:a:python-ldap:python-ldap:2.3.13
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cpe:2.3:a:python-ldap:python-ldap:2.3.3
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cpe:2.3:a:python-ldap:python-ldap:2.3.4
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cpe:2.3:a:python-ldap:python-ldap:2.3.7
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cpe:2.3:a:python-ldap:python-ldap:2.3.8
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cpe:2.3:a:python-ldap:python-ldap:2.3.9
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cpe:2.3:a:python-ldap:python-ldap:2.4.10
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cpe:2.3:a:python-ldap:python-ldap:2.4.12
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cpe:2.3:a:python-ldap:python-ldap:2.4.13
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cpe:2.3:a:python-ldap:python-ldap:2.4.20
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cpe:2.3:a:python-ldap:python-ldap:2.4.21
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cpe:2.3:a:python-ldap:python-ldap:2.4.23
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cpe:2.3:a:python-ldap:python-ldap:2.4.26
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cpe:2.3:a:python-ldap:python-ldap:2.4.27
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cpe:2.3:a:python-ldap:python-ldap:2.4.28
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cpe:2.3:a:python-ldap:python-ldap:2.4.29
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cpe:2.3:a:python-ldap:python-ldap:2.4.30
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cpe:2.3:a:python-ldap:python-ldap:2.4.31
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cpe:2.3:a:python-ldap:python-ldap:2.4.32
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cpe:2.3:a:python-ldap:python-ldap:2.4.33
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cpe:2.3:a:python-ldap:python-ldap:2.4.35
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cpe:2.3:a:python-ldap:python-ldap:2.4.36
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cpe:2.3:a:python-ldap:python-ldap:2.4.37
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cpe:2.3:a:python-ldap:python-ldap:2.4.38
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cpe:2.3:a:python-ldap:python-ldap:2.4.39
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cpe:2.3:a:python-ldap:python-ldap:2.4.4
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cpe:2.3:a:python-ldap:python-ldap:2.4.40
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cpe:2.3:a:python-ldap:python-ldap:2.4.41
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cpe:2.3:a:python-ldap:python-ldap:2.4.42
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cpe:2.3:a:python-ldap:python-ldap:2.4.43
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cpe:2.3:a:python-ldap:python-ldap:2.4.44
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cpe:2.3:a:python-ldap:python-ldap:2.4.45
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cpe:2.3:a:python-ldap:python-ldap:2.4.6
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cpe:2.3:a:python-ldap:python-ldap:2.4.7
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cpe:2.3:a:python-ldap:python-ldap:2.4.9
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cpe:2.3:a:python-ldap:python-ldap:2.5.0
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cpe:2.3:a:python-ldap:python-ldap:2.5.1
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cpe:2.3:a:python-ldap:python-ldap:2.5.2
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cpe:2.3:a:python-ldap:python-ldap:3.0.0
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cpe:2.3:a:python-ldap:python-ldap:3.1.0
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cpe:2.3:a:python-ldap:python-ldap:3.2.0
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cpe:2.3:a:python-ldap:python-ldap:3.3.0
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cpe:2.3:a:python-ldap:python-ldap:3.3.1
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cpe:2.3:a:python-ldap:python-ldap:3.4.0
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cpe:2.3:a:python-ldap:python-ldap:3.4.1
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cpe:2.3:a:python-ldap:python-ldap:3.4.2
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cpe:2.3:a:python-ldap:python-ldap:3.4.3
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cpe:2.3:a:python-ldap:python-ldap:3.4.4