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Vulnerability Details CVE-2025-52434

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections. This issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 9.0.107, which fixes the issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 40.2%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2025-52434
  • Apache » Tomcat » Version: 9.0.0
    cpe:2.3:a:apache:tomcat:9.0.0
  • Apache » Tomcat » Version: 9.0.1
    cpe:2.3:a:apache:tomcat:9.0.1
  • Apache » Tomcat » Version: 9.0.10
    cpe:2.3:a:apache:tomcat:9.0.10
  • Apache » Tomcat » Version: 9.0.100
    cpe:2.3:a:apache:tomcat:9.0.100
  • Apache » Tomcat » Version: 9.0.101
    cpe:2.3:a:apache:tomcat:9.0.101
  • Apache » Tomcat » Version: 9.0.102
    cpe:2.3:a:apache:tomcat:9.0.102
  • Apache » Tomcat » Version: 9.0.103
    cpe:2.3:a:apache:tomcat:9.0.103
  • Apache » Tomcat » Version: 9.0.104
    cpe:2.3:a:apache:tomcat:9.0.104
  • Apache » Tomcat » Version: 9.0.105
    cpe:2.3:a:apache:tomcat:9.0.105
  • Apache » Tomcat » Version: 9.0.106
    cpe:2.3:a:apache:tomcat:9.0.106
  • Apache » Tomcat » Version: 9.0.11
    cpe:2.3:a:apache:tomcat:9.0.11
  • Apache » Tomcat » Version: 9.0.12
    cpe:2.3:a:apache:tomcat:9.0.12
  • Apache » Tomcat » Version: 9.0.13
    cpe:2.3:a:apache:tomcat:9.0.13
  • Apache » Tomcat » Version: 9.0.14
    cpe:2.3:a:apache:tomcat:9.0.14
  • Apache » Tomcat » Version: 9.0.15
    cpe:2.3:a:apache:tomcat:9.0.15
  • Apache » Tomcat » Version: 9.0.16
    cpe:2.3:a:apache:tomcat:9.0.16
  • Apache » Tomcat » Version: 9.0.17
    cpe:2.3:a:apache:tomcat:9.0.17
  • Apache » Tomcat » Version: 9.0.18
    cpe:2.3:a:apache:tomcat:9.0.18
  • Apache » Tomcat » Version: 9.0.19
    cpe:2.3:a:apache:tomcat:9.0.19
  • Apache » Tomcat » Version: 9.0.2
    cpe:2.3:a:apache:tomcat:9.0.2
  • Apache » Tomcat » Version: 9.0.20
    cpe:2.3:a:apache:tomcat:9.0.20
  • Apache » Tomcat » Version: 9.0.21
    cpe:2.3:a:apache:tomcat:9.0.21
  • Apache » Tomcat » Version: 9.0.22
    cpe:2.3:a:apache:tomcat:9.0.22
  • Apache » Tomcat » Version: 9.0.23
    cpe:2.3:a:apache:tomcat:9.0.23
  • Apache » Tomcat » Version: 9.0.24
    cpe:2.3:a:apache:tomcat:9.0.24
  • Apache » Tomcat » Version: 9.0.25
    cpe:2.3:a:apache:tomcat:9.0.25
  • Apache » Tomcat » Version: 9.0.26
    cpe:2.3:a:apache:tomcat:9.0.26
  • Apache » Tomcat » Version: 9.0.27
    cpe:2.3:a:apache:tomcat:9.0.27
  • Apache » Tomcat » Version: 9.0.28
    cpe:2.3:a:apache:tomcat:9.0.28
  • Apache » Tomcat » Version: 9.0.29
    cpe:2.3:a:apache:tomcat:9.0.29
  • Apache » Tomcat » Version: 9.0.3
    cpe:2.3:a:apache:tomcat:9.0.3
  • Apache » Tomcat » Version: 9.0.30
    cpe:2.3:a:apache:tomcat:9.0.30
  • Apache » Tomcat » Version: 9.0.31
    cpe:2.3:a:apache:tomcat:9.0.31
  • Apache » Tomcat » Version: 9.0.32
    cpe:2.3:a:apache:tomcat:9.0.32
  • Apache » Tomcat » Version: 9.0.33
    cpe:2.3:a:apache:tomcat:9.0.33
  • Apache » Tomcat » Version: 9.0.34
    cpe:2.3:a:apache:tomcat:9.0.34
  • Apache » Tomcat » Version: 9.0.35
    cpe:2.3:a:apache:tomcat:9.0.35
  • Apache » Tomcat » Version: 9.0.35-3.39.1
    cpe:2.3:a:apache:tomcat:9.0.35-3.39.1
  • Apache » Tomcat » Version: 9.0.35-3.57.3
    cpe:2.3:a:apache:tomcat:9.0.35-3.57.3
  • Apache » Tomcat » Version: 9.0.36
    cpe:2.3:a:apache:tomcat:9.0.36
  • Apache » Tomcat » Version: 9.0.37
    cpe:2.3:a:apache:tomcat:9.0.37
  • Apache » Tomcat » Version: 9.0.38
    cpe:2.3:a:apache:tomcat:9.0.38
  • Apache » Tomcat » Version: 9.0.39
    cpe:2.3:a:apache:tomcat:9.0.39
  • Apache » Tomcat » Version: 9.0.4
    cpe:2.3:a:apache:tomcat:9.0.4
  • Apache » Tomcat » Version: 9.0.40
    cpe:2.3:a:apache:tomcat:9.0.40
  • Apache » Tomcat » Version: 9.0.41
    cpe:2.3:a:apache:tomcat:9.0.41
  • Apache » Tomcat » Version: 9.0.42
    cpe:2.3:a:apache:tomcat:9.0.42
  • Apache » Tomcat » Version: 9.0.43
    cpe:2.3:a:apache:tomcat:9.0.43
  • Apache » Tomcat » Version: 9.0.44
    cpe:2.3:a:apache:tomcat:9.0.44
  • Apache » Tomcat » Version: 9.0.45
    cpe:2.3:a:apache:tomcat:9.0.45
  • Apache » Tomcat » Version: 9.0.46
    cpe:2.3:a:apache:tomcat:9.0.46
  • Apache » Tomcat » Version: 9.0.47
    cpe:2.3:a:apache:tomcat:9.0.47
  • Apache » Tomcat » Version: 9.0.48
    cpe:2.3:a:apache:tomcat:9.0.48
  • Apache » Tomcat » Version: 9.0.49
    cpe:2.3:a:apache:tomcat:9.0.49
  • Apache » Tomcat » Version: 9.0.5
    cpe:2.3:a:apache:tomcat:9.0.5
  • Apache » Tomcat » Version: 9.0.50
    cpe:2.3:a:apache:tomcat:9.0.50
  • Apache » Tomcat » Version: 9.0.51
    cpe:2.3:a:apache:tomcat:9.0.51
  • Apache » Tomcat » Version: 9.0.52
    cpe:2.3:a:apache:tomcat:9.0.52
  • Apache » Tomcat » Version: 9.0.53
    cpe:2.3:a:apache:tomcat:9.0.53
  • Apache » Tomcat » Version: 9.0.54
    cpe:2.3:a:apache:tomcat:9.0.54
  • Apache » Tomcat » Version: 9.0.55
    cpe:2.3:a:apache:tomcat:9.0.55
  • Apache » Tomcat » Version: 9.0.56
    cpe:2.3:a:apache:tomcat:9.0.56
  • Apache » Tomcat » Version: 9.0.57
    cpe:2.3:a:apache:tomcat:9.0.57
  • Apache » Tomcat » Version: 9.0.58
    cpe:2.3:a:apache:tomcat:9.0.58
  • Apache » Tomcat » Version: 9.0.59
    cpe:2.3:a:apache:tomcat:9.0.59
  • Apache » Tomcat » Version: 9.0.6
    cpe:2.3:a:apache:tomcat:9.0.6
  • Apache » Tomcat » Version: 9.0.60
    cpe:2.3:a:apache:tomcat:9.0.60
  • Apache » Tomcat » Version: 9.0.61
    cpe:2.3:a:apache:tomcat:9.0.61
  • Apache » Tomcat » Version: 9.0.62
    cpe:2.3:a:apache:tomcat:9.0.62
  • Apache » Tomcat » Version: 9.0.63
    cpe:2.3:a:apache:tomcat:9.0.63
  • Apache » Tomcat » Version: 9.0.64
    cpe:2.3:a:apache:tomcat:9.0.64
  • Apache » Tomcat » Version: 9.0.65
    cpe:2.3:a:apache:tomcat:9.0.65
  • Apache » Tomcat » Version: 9.0.67
    cpe:2.3:a:apache:tomcat:9.0.67
  • Apache » Tomcat » Version: 9.0.68
    cpe:2.3:a:apache:tomcat:9.0.68
  • Apache » Tomcat » Version: 9.0.69
    cpe:2.3:a:apache:tomcat:9.0.69
  • Apache » Tomcat » Version: 9.0.7
    cpe:2.3:a:apache:tomcat:9.0.7
  • Apache » Tomcat » Version: 9.0.70
    cpe:2.3:a:apache:tomcat:9.0.70
  • Apache » Tomcat » Version: 9.0.71
    cpe:2.3:a:apache:tomcat:9.0.71
  • Apache » Tomcat » Version: 9.0.72
    cpe:2.3:a:apache:tomcat:9.0.72
  • Apache » Tomcat » Version: 9.0.73
    cpe:2.3:a:apache:tomcat:9.0.73
  • Apache » Tomcat » Version: 9.0.74
    cpe:2.3:a:apache:tomcat:9.0.74
  • Apache » Tomcat » Version: 9.0.75
    cpe:2.3:a:apache:tomcat:9.0.75
  • Apache » Tomcat » Version: 9.0.76
    cpe:2.3:a:apache:tomcat:9.0.76
  • Apache » Tomcat » Version: 9.0.77
    cpe:2.3:a:apache:tomcat:9.0.77
  • Apache » Tomcat » Version: 9.0.78
    cpe:2.3:a:apache:tomcat:9.0.78
  • Apache » Tomcat » Version: 9.0.79
    cpe:2.3:a:apache:tomcat:9.0.79
  • Apache » Tomcat » Version: 9.0.8
    cpe:2.3:a:apache:tomcat:9.0.8
  • Apache » Tomcat » Version: 9.0.80
    cpe:2.3:a:apache:tomcat:9.0.80
  • Apache » Tomcat » Version: 9.0.81
    cpe:2.3:a:apache:tomcat:9.0.81
  • Apache » Tomcat » Version: 9.0.82
    cpe:2.3:a:apache:tomcat:9.0.82
  • Apache » Tomcat » Version: 9.0.83
    cpe:2.3:a:apache:tomcat:9.0.83
  • Apache » Tomcat » Version: 9.0.84
    cpe:2.3:a:apache:tomcat:9.0.84
  • Apache » Tomcat » Version: 9.0.85
    cpe:2.3:a:apache:tomcat:9.0.85
  • Apache » Tomcat » Version: 9.0.86
    cpe:2.3:a:apache:tomcat:9.0.86
  • Apache » Tomcat » Version: 9.0.87
    cpe:2.3:a:apache:tomcat:9.0.87
  • Apache » Tomcat » Version: 9.0.88
    cpe:2.3:a:apache:tomcat:9.0.88
  • Apache » Tomcat » Version: 9.0.89
    cpe:2.3:a:apache:tomcat:9.0.89
  • Apache » Tomcat » Version: 9.0.9
    cpe:2.3:a:apache:tomcat:9.0.9
  • Apache » Tomcat » Version: 9.0.90
    cpe:2.3:a:apache:tomcat:9.0.90
  • Apache » Tomcat » Version: 9.0.91
    cpe:2.3:a:apache:tomcat:9.0.91
  • Apache » Tomcat » Version: 9.0.92
    cpe:2.3:a:apache:tomcat:9.0.92
  • Apache » Tomcat » Version: 9.0.93
    cpe:2.3:a:apache:tomcat:9.0.93
  • Apache » Tomcat » Version: 9.0.94
    cpe:2.3:a:apache:tomcat:9.0.94
  • Apache » Tomcat » Version: 9.0.95
    cpe:2.3:a:apache:tomcat:9.0.95
  • Apache » Tomcat » Version: 9.0.96
    cpe:2.3:a:apache:tomcat:9.0.96
  • Apache » Tomcat » Version: 9.0.97
    cpe:2.3:a:apache:tomcat:9.0.97
  • Apache » Tomcat » Version: 9.0.98
    cpe:2.3:a:apache:tomcat:9.0.98
  • Apache » Tomcat » Version: 9.0.99
    cpe:2.3:a:apache:tomcat:9.0.99


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