CVE-2019-3933

Am 100 Firmware vulnerability

CVSS

5.3

EPSS

5.9%

EPSS pct

93th

Exploited

No known

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 simply by requesting /images/browserslide.jpg via HTTP. A remote, unauthenticated attacker can use this vulnerability to watch a slideshow without knowing the access code.

Affected vendor

Crestron

Affected product

Am 100 Firmware

CVSS vector

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

Weakness type (CWE)

CWE-284 — Improper Access Control
CWE-425 — Direct Request (Forced Browsing)

Published

2019-04-30

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 low impact to confidentiality.

Its EPSS score of 5.9% 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-2019-3933

Confirm whether Crestron Am 100 Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2019-3933.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-3933

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-3933 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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