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Vulnerability record · CVE-2011-4905 · published 5 January 2012

CVE-2011-4905: Apache activemq vulnerability

Apache · Activemq

Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.

5.0 CVSS 2.0 Medium EPSS 8.4% · top 5.2% CWE-399 · CWE-399
5.0CVSS 2.0 base score
8.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://openwall.com/lists/oss-security/2011/12/25/2
http://openwall.com/lists/oss-security/2011/12/25/6
http://secunia.com/advisories/47112 Vendor Advisory
http://svn.apache.org/viewvc?view=revision&revision=1209700
http://svn.apache.org/viewvc?view=revision&revision=1211844
http://www.securityfocus.com/bid/50904
https://issues.apache.org/jira/browse/AMQ-3294 Exploit
http://openwall.com/lists/oss-security/2011/12/25/2
http://openwall.com/lists/oss-security/2011/12/25/6
http://secunia.com/advisories/47112 Vendor Advisory
http://svn.apache.org/viewvc?view=revision&revision=1209700
http://svn.apache.org/viewvc?view=revision&revision=1211844
http://www.securityfocus.com/bid/50904
https://issues.apache.org/jira/browse/AMQ-3294 Exploit

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Source: NIST National Vulnerability Database (record CVE-2011-4905), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.