CVE-2016-8741

Qpid Broker J vulnerability

CVSS

7.5

EPSS

6.3%

EPSS pct

93th

Exploited

No known

The Apache Qpid Broker for Java can be configured to use different so called AuthenticationProviders to handle user authentication. Among the choices are the SCRAM-SHA-1 and SCRAM-SHA-256 AuthenticationProvider types. It was discovered that these AuthenticationProviders in Apache Qpid Broker for Java 6.0.x before 6.0.6 and 6.1.x before 6.1.1 prematurely terminate the SCRAM SASL negotiation if the provided user name does not exist thus allowing remote attacker to determine the existence of user accounts. The Vulnerability does not apply to AuthenticationProviders other than SCRAM-SHA-1 and SCRAM-SHA-256.

Affected vendor

Apache

Affected product

Qpid Broker J

CVSS vector

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

Weakness type (CWE)

CWE-200 — Exposure of Sensitive Information

Published

2017-05-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 6.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2016-8741

Confirm whether Apache Qpid Broker J is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2016-8741.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-8741

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-8741 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2016-8741?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2016-8741.

Start free scan

No credit card. Agentless.

Related vulnerabilities

HIGH

CVE-2025-6970

Events Manager vulnerability

Sma 500v Firmware vulnerability