Vulnerability Details CVE-2025-49506
APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel timing attack particularly on platforms without crypt() such as Windows, BeOS, NetWare, or Android.
Users are recommended to upgrade to version 1.6.4, which fixes this issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 32.2%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2025-49506
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cpe:2.3:a:apache:apr-util:1.2.1
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cpe:2.3:a:apache:apr-util:1.2.10
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cpe:2.3:a:apache:apr-util:1.2.11
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cpe:2.3:a:apache:apr-util:1.2.12
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cpe:2.3:a:apache:apr-util:1.2.13
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cpe:2.3:a:apache:apr-util:1.2.2
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cpe:2.3:a:apache:apr-util:1.2.3
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cpe:2.3:a:apache:apr-util:1.2.4
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cpe:2.3:a:apache:apr-util:1.2.5
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cpe:2.3:a:apache:apr-util:1.2.6
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cpe:2.3:a:apache:apr-util:1.2.7
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cpe:2.3:a:apache:apr-util:1.2.8
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cpe:2.3:a:apache:apr-util:1.2.9
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cpe:2.3:a:apache:apr-util:1.3.0
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cpe:2.3:a:apache:apr-util:1.3.1
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cpe:2.3:a:apache:apr-util:1.3.10
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cpe:2.3:a:apache:apr-util:1.3.11
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cpe:2.3:a:apache:apr-util:1.3.12
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cpe:2.3:a:apache:apr-util:1.3.2
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cpe:2.3:a:apache:apr-util:1.3.3
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cpe:2.3:a:apache:apr-util:1.3.4
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cpe:2.3:a:apache:apr-util:1.3.5
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cpe:2.3:a:apache:apr-util:1.3.6
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cpe:2.3:a:apache:apr-util:1.3.7
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cpe:2.3:a:apache:apr-util:1.3.8
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cpe:2.3:a:apache:apr-util:1.3.9
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cpe:2.3:a:apache:apr-util:1.4.0
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cpe:2.3:a:apache:apr-util:1.4.1
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cpe:2.3:a:apache:apr-util:1.4.2
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cpe:2.3:a:apache:apr-util:1.4.3
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cpe:2.3:a:apache:apr-util:1.4.4
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cpe:2.3:a:apache:apr-util:1.5.0
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cpe:2.3:a:apache:apr-util:1.5.1
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cpe:2.3:a:apache:apr-util:1.5.2
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cpe:2.3:a:apache:apr-util:1.5.3
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cpe:2.3:a:apache:apr-util:1.5.4
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cpe:2.3:a:apache:apr-util:1.6.0
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cpe:2.3:a:apache:apr-util:1.6.1