CVE-2015-6524
MEDIUMEPSS 95th pctlDescription
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 to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
High risk: more likely to be exploited than 95% of all known CVEs.
References
Related Vulnerabilities
Other CWE-255 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2010-0219 | High | 10.0 | 90% | - | - |
| CVE-2014-9195 | High | 10.0 | 81% | - | - |
| CVE-2009-3548 | High | 7.5 | 79% | - | - |
| CVE-2013-4786 | High | 7.5 | 79% | - | - |
| CVE-2009-4189 | High | 10.0 | 79% | - | - |
| CVE-2017-8229 | Critical | 9.8 | 74% | - | - |
Common questions
How do I fix CVE-2015-6524?
Upgrade activemq on debian 11 to 5.6.0+dfsg1-4 or later.
Is CVE-2015-6524 being actively exploited?
Not that we know of. CVE-2015-6524 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 8.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 95% of all scored CVEs.
How severe is CVE-2015-6524?
CVE-2015-6524 has a CVSS v2 base score of 5.0, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2015-6524 affect?
Published advisories record a fix for activemq (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.