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Am 100 Firmware CVE-2019-3936

HIGH
Improper Access Control (CWE-284)
2019-04-30 vulnreport@tenable.com
Authentication Bypass Denial Of Service Am 100 Firmware Am 101 Firmware Crestron
7.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-284
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 2.1% exploitation probability (EPSS)

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AnalysisAI

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 is vulnerable to denial of service via a crafted request to TCP port 389. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-284. Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 is vulnerable to denial of service via a crafted request to TCP port 389. The request will force the slideshow to transition into a "stopped" state. A remote, unauthenticated attacker can use this vulnerability to stop an active slideshow. Affected products include: Crestron Am-100 Firmware, Crestron Am-101 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 is vulnerable to denial of service via a crafted request to TCP port 389. The request will force the slideshow to transition into a "stopped" state. A remote, unauthenticated attacker can use this vulnerability to stop an active slideshow.

Threat Intelligence Overview

EPSS Score
2.1%
Top 20% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 2.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:o:crestron:am-100_firmware:1.6.0.2:*:*:*:*:*:*:*
cpe:2.3:o:crestron:am-101_firmware:2.7.0.2:*:*:*:*:*:*:*

More in Am 100 Firmware

View all
CVE-2019-3929 CRITICAL POC
9.8 Apr 30

The Crestron AM-100 firmware 1.6.0.2, Crestron AM-101 firmware 2.7.0.1, Barco wePresent WiPG-1000P firmware 2.3.0.10, Ba
CVE-2019-3932 CRITICAL POC
9.8 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 are vulnerable to authentication bypass due to a

CVE-2019-3930 CRITICAL POC
9.8 Apr 30

The Crestron AM-100 firmware 1.6.0.2, Crestron AM-101 firmware 2.7.0.1, Barco wePresent WiPG-1000P firmware 2.3.0.10, Ba
CVE-2019-3927 CRITICAL POC
9.8 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 anyone can change the administrator and moderator
CVE-2019-3926 CRITICAL POC
9.8 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 are vulnerable to command injection via SNMP OID

CVE-2019-3925 CRITICAL POC
9.8 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 are vulnerable to command injection via SNMP OID

CVE-2019-3935 CRITICAL POC
9.1 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 allows anyone to act as a moderator to a slide sh
CVE-2019-3931 HIGH POC
8.8 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 are vulnerable to argumention injection to the cu
CVE-2019-3938 HIGH POC
7.8 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 stores usernames, passwords, and other configurat
CVE-2019-3937 HIGH POC
7.8 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 stores usernames, passwords, slideshow passcode,

CVE-2019-3939 CRITICAL
9.8 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 use default credentials admin/admin and moderator
CVE-2019-3934 MEDIUM POC
5.3 Apr 30

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 allows anyone to bypass the presentation code sen

Same weakness CWE-284 – Improper Access Control

View all
CVE-2015-3306 CRITICAL POC
10.0
CVE-2012-4681 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2012-1723 CRITICAL POC
9.8
CVE-2012-5076 CRITICAL POC
9.8
CVE-2014-3120 HIGH POC
8.1
CVE-2013-2423 LOW POC
3.7
CVE-2016-3427 CRITICAL
9.8

Same technique Authentication Bypass

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CVE-2023-22515 CRITICAL POC
9.8
CVE-2013-2465 CRITICAL POC
9.8
CVE-2022-40684 CRITICAL POC
9.8
CVE-2025-61882 CRITICAL POC
9.8
CVE-2024-0012 CRITICAL POC
9.3

References

Advisories & patches
REF https://www.tenable.com/security/research/tra-2019-20

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