How severe is CVE-2016-4432?

CVE-2016-4432 has a CVSS 3.x base score of 9.1, 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 none.

Is CVE-2016-4432 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-2016-4432?

CVE-2016-4432 affects Apache Qpid Broker-j. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-4432?

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-2016-4432 published?

CVE-2016-4432 was published on 2016-06-01 and last updated on 2026-06-17.

CVE-2016-4432

CVE-2016-4432 is a critical-severity vulnerability in Apache Qpid Broker-j with a CVSS 3.x base score of 9.1. 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 5.0
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Apache Qpid Broker-j
Published: 2016-06-01
Last modified: 2026-06-17

Description

The AMQP 0-8, 0-9, 0-91, and 0-10 connection handling in Apache Qpid Java before 6.0.3 might allow remote attackers to bypass authentication and consequently perform actions via vectors related to connection state logging.

Frequently asked questions

What is CVE-2016-4432?: The AMQP 0-8, 0-9, 0-91, and 0-10 connection handling in Apache Qpid Java before 6.0.3 might allow remote attackers to bypass authentication and consequently perform actions via vectors related to connection state logging.
How severe is CVE-2016-4432?: CVE-2016-4432 has a CVSS 3.x base score of 9.1, 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 none.
Is CVE-2016-4432 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-2016-4432?: CVE-2016-4432 affects Apache Qpid Broker-j. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-4432?: 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-2016-4432 published?: CVE-2016-4432 was published on 2016-06-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:qpid_broker-j:*:*:*:*:*:*:*:*

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