FKIE_CVE-2025-27533

Vulnerability from fkie_nvd - Published: 2025-05-07 09:15 - Updated: 2025-11-03 20:18
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ. During unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections. This issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected. Users are recommended to upgrade to version 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue. Existing users may implement mutual TLS to mitigate the risk on affected brokers.
References
security@apache.orghttps://lists.apache.org/thread/8hcm25vf7mchg4zbbhnlx2lc5bs705hgMailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/05/06/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/06/msg00020.html
Impacted products
Vendor Product Version
apache activemq *
apache activemq *
apache activemq *
apache activemq *
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ.\n\nDuring unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections.\nThis issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected.\n\nUsers are recommended to upgrade to version 6.1.6+, 5.19.0+,  5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue.\n\nExisting users may implement mutual TLS to mitigate the risk on affected brokers."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de asignaci\u00f3n de memoria con valor de tama\u00f1o excesivo en Apache ActiveMQ. Durante la desmarshalling de comandos OpenWire, el valor de tama\u00f1o de los b\u00faferes no se valid\u00f3 correctamente, lo que podr\u00eda provocar una asignaci\u00f3n excesiva de memoria y ser explotado para causar una denegaci\u00f3n de servicio (DoS) al agotar la memoria del proceso. Esto afecta a aplicaciones y servicios que dependen de la disponibilidad del broker ActiveMQ cuando no utilizan conexiones TLS mutuas. Este problema afecta a Apache ActiveMQ: desde la versi\u00f3n 6.0.0 hasta la 6.1.6, desde la versi\u00f3n 5.18.0 hasta la 5.18.7, desde la versi\u00f3n 5.17.0 hasta la 5.17.7 y hasta la 5.16.8. ActiveMQ 5.19.0 no se ve afectado. Se recomienda a los usuarios actualizar a la versi\u00f3n 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7 o 5.16.8, o a la que solucione el problema. Los usuarios existentes pueden implementar TLS mutuo para mitigar el riesgo en los corredores afectados."
    }
  ],
  "id": "CVE-2025-27533",
  "lastModified": "2025-11-03T20:18:02.323",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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          "Recovery": "AUTOMATIC",
          "Safety": "NOT_DEFINED",
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          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "HIGH",
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          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "MODERATE"
        },
        "source": "security@apache.org",
        "type": "Secondary"
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  "published": "2025-05-07T09:15:18.820",
  "references": [
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  "vulnStatus": "Modified",
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          "value": "CWE-789"
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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