How severe is CVE-2015-5254?

CVE-2015-5254 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-5254 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5254?

CVE-2015-5254 primarily affects Redhat Openshift. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-5254?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-5254 published?

CVE-2015-5254 was published on 2016-01-08 and last updated on 2026-06-17.

CVE-2015-5254

CVE-2015-5254 is a critical-severity vulnerability in Redhat Openshift with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 38% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 38% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Redhat Openshift
Published: 2016-01-08
Last modified: 2026-06-17

Description

Apache ActiveMQ 5.x before 5.13.0 does not restrict the classes that can be serialized in the broker, which allows remote attackers to execute arbitrary code via a crafted serialized Java Message Service (JMS) ObjectMessage object.

Frequently asked questions

What is CVE-2015-5254?: Apache ActiveMQ 5.x before 5.13.0 does not restrict the classes that can be serialized in the broker, which allows remote attackers to execute arbitrary code via a crafted serialized Java Message Service (JMS) ObjectMessage object.
How severe is CVE-2015-5254?: CVE-2015-5254 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-5254 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-5254?: CVE-2015-5254 primarily affects Redhat Openshift. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-5254?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-5254 published?: CVE-2015-5254 was published on 2016-01-08 and last updated on 2026-06-17.

References

Affected products (27)

cpe:2.3:a:redhat:openshift:2.0:*:*:*:*:*:*:*
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:5.4.3:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.10.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.10.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.11.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.11.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.11.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.12.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq:5.12.1:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*

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