CVE-2011-4905

mediumpriority · track · 23EPSS 0.085 · 95 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

8.51% (95th) EPSS

CVSS 5 · medium

Is it mine?

32 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v2.04.3mediumAV:N/AC:L/Au:N/C:N/I:N/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimary

affected products (32)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
apache activemq≤ 5.5.1nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 1.1nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 1.2nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 1.3nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 1.4nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 1.5nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 2.0nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 2.1nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 3.0nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 3.1nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 3.2nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 3.2.1nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 3.2.2nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 4.0nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 4.0.1nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 4.0.2nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 4.1.0nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 4.1.1nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq= 4.1.2nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*

showing 20 of 32

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-9wcx-326r-7j7wDenial of Service in Apache ActiveMQ2022-05-17ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2012-01-05modified 2026-06-16

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+3721 more

references (17)

External citations — patches, advisories, analysis.

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