CVE-2023-38405

On Crestron 3-Series Control Systems before 1.8001.0187, crafting and sending a specific BACnet packet can cause a crash.

Published: 2023-07-17 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-38405 is rated Low Risk (37.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.07%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2023-38405

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 2025-11-21 0.27% 0.07% -0.20%
2 2025-11-18 0.07% 0.27% +0.20%
3 2025-04-15 — 0.07% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-38405

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2023-38405

Affected software / configurations for CVE-2023-38405

Vendor Product Version Raw CPE
crestron cp3n_6505417_firmware < 1.8001.0187 cpe:2.3:o:crestron:cp3n_6505417_firmware:*:*:*:*:*:*:*:*
crestron cp3_6504877_firmware < 1.8001.0187 cpe:2.3:o:crestron:cp3_6504877_firmware:*:*:*:*:*:*:*:*
crestron cp3-gv_6506034_firmware < 1.8001.0187 cpe:2.3:o:crestron:cp3-gv_6506034_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-38405

cvelogic Threat Intelligence