How severe is CVE-2016-4974?

CVE-2016-4974 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-4974 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4974?

CVE-2016-4974 primarily affects Apache Amqp 0-x Jms Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4974?

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

When was CVE-2016-4974 published?

CVE-2016-4974 was published on 2016-07-13 and last updated on 2026-06-17.

CVE-2016-4974

CVE-2016-4974 is a high-severity vulnerability in Apache Amqp 0-x Jms Client with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.0
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apache Amqp 0-x Jms Client
Published: 2016-07-13
Last modified: 2026-06-17

Description

Apache Qpid AMQP 0-x JMS client before 6.0.4 and JMS (AMQP 1.0) before 0.10.0 does not restrict the use of classes available on the classpath, which might allow remote authenticated users with permission to send messages to deserialize arbitrary objects and execute arbitrary code by leveraging a crafted serialized object in a JMS ObjectMessage that is handled by the getObject function.

Frequently asked questions

What is CVE-2016-4974?: Apache Qpid AMQP 0-x JMS client before 6.0.4 and JMS (AMQP 1.0) before 0.10.0 does not restrict the use of classes available on the classpath, which might allow remote authenticated users with permission to send messages to deserialize arbitrary objects and execute arbitrary code by leveraging a crafted serialized object in a JMS ObjectMessage that is handled by the getObject function.
How severe is CVE-2016-4974?: CVE-2016-4974 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-4974 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4974?: CVE-2016-4974 primarily affects Apache Amqp 0-x Jms Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4974?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-4974 published?: CVE-2016-4974 was published on 2016-07-13 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:apache:amqp_0-x_jms_client:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:jms_client_amqp:*:*:*:*:*:*:*:*

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →