CVE-2016-3094

PlainSaslServer.java in Apache Qpid Java before 6.0.3, when the broker is configured to allow plaintext passwords, allows remote attackers to cause a denial of service (broker termination) via a crafted authentication attempt, which triggers an uncaught exception.

Published: 2016-06-01 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-3094 is rated Moderate Risk (61.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 7.83%, 94th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +6.84% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-3094

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.99% 7.83% +6.84%
2 2025-08-23 0.69% 0.99% +0.29%
3 2025-04-25 — 0.69% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-3094

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2016-3094

GitHub Security Advisory for CVE-2016-3094

GHSA-jj9h-mwhq-8vhm · Severity: medium · Ecosystem: maven — Improper Input Validation in org.apache.qpid:qpid-broker

OS Trackers for CVE-2016-3094

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2016-3094
ubuntu low CVE-2016-3094 low priority: Ubuntu including 1 source packages (qpid-cpp), 10 status rows across 10 suites (artful, bionic, cosmic, precise, trusty, upstream, wily, xenial, yakkety, zesty): ignored 6, DNE 3, needs-triage 1. https://ubuntu.com/security/CVE-2016-3094

Affected software / configurations for CVE-2016-3094

Vendor Product Version Raw CPE
apache qpid_broker-j <= 6.0.2 cpe:2.3:a:apache:qpid_broker-j:*:*:*:*:*:*:*:*

References for CVE-2016-3094

cvelogic Threat Intelligence