CVE-2023-5407

MEDIUM

Honeywell C300 - Denial of Service via Crafted Message Handling

Title source: llm

Description

Controller denial of service due to improper handling of a specially crafted message received by the controller. See Honeywell Security Notification for recommendations on upgrading and versioning.

References (1)

Core 1

Core References

Various Sources

https://process.honeywell.com

Scores

CVSS v3 5.9

EPSS 0.0044

EPSS Percentile 35.4%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-121

Status published

Products (5)

Honeywell/C300 510.1 - 510.2 HF13

Honeywell/C300 511.1 - 511.5 TCU4 HF3

Honeywell/C300 520.1 - 520.1 TCU4

Honeywell/C300 520.2 - 520.2 TCU4

Honeywell/C300 520.2 TCU4 HFR2 - 511.5 TCU4 HF3

Published Apr 17, 2024

Tracked Since Feb 18, 2026