How severe is CVE-2015-6524?

CVE-2015-6524 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-6524 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6524?

CVE-2015-6524 primarily affects Apache Activemq. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6524?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-6524 published?

CVE-2015-6524 was published on 2015-08-24 and last updated on 2026-06-17.

CVE-2015-6524

CVE-2015-6524 is a medium-severity vulnerability in Apache Activemq with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-255.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Apache Activemq
Published: 2015-08-24
Last modified: 2026-06-17

Description

The LDAPLoginModule implementation in the Java Authentication and Authorization Service (JAAS) in Apache ActiveMQ 5.x before 5.10.1 allows wildcard operators in usernames, which allows remote attackers to obtain credentials via a brute force attack. NOTE: this identifier was SPLIT from CVE-2014-3612 per ADT2 due to different vulnerability types.

Frequently asked questions

What is CVE-2015-6524?: The LDAPLoginModule implementation in the Java Authentication and Authorization Service (JAAS) in Apache ActiveMQ 5.x before 5.10.1 allows wildcard operators in usernames, which allows remote attackers to obtain credentials via a brute force attack. NOTE: this identifier was SPLIT from CVE-2014-3612 per ADT2 due to different vulnerability types.
How severe is CVE-2015-6524?: CVE-2015-6524 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-6524 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6524?: CVE-2015-6524 primarily affects Apache Activemq. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6524?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6524 published?: CVE-2015-6524 was published on 2015-08-24 and last updated on 2026-06-17.

References

Affected products (20)

cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.0.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.1.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.2.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.3.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.3.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.3.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.4.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.4.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.4.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.4.3:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.5.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.5.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.6.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.7.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.8.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.9.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.9.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.10.0:*:*:*:*:*:*:*

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