Is CVE-2016-4432 in the CISA KEV catalog?

No. CVE-2016-4432 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-4432?

CVE-2016-4432 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2016-4432?

CVE-2016-4432 has an EPSS score of 8.15% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-4432?

Upgrade qpid broker-j to 6.0.3 or later.

CVE & CISA-KEV Catalog

CVE-2016-4432

CRITICALEPSS 94th pctl

9.1

CVSS v3

NVD

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.

CWE-287Improper Authentication

How to fix

Remediation Available

qpid broker-jNVD

Affected:< 6.0.3Fixed in:6.0.3CVE-2016-4432derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

8.15%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch2

Vendor Advisory2

Third-Party Advisory3

Related Vulnerabilities

Other CWE-287 (Improper Authentication) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-35082	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-35078	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2017-7921	Critical	9.8	100%	KEV	-
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-46805	High	8.2	100%	KEV + Ransom	-
CVE-2022-40684	Critical	9.8	100%	KEV + Ransom	Fix

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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.