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CVE-2023-5407

MEDIUM
5.9
CVSS Score
Published: April 17, 2024 at 04:49 PM UTC
Updated: June 17, 2026 at 06:48 AM UTC
1 product affected across 1 vendorC300

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

C300· Honeywell
60%
510.1 ≤ v ≤ 510.2 HF13511.1 ≤ v ≤ 511.5 TCU4 HF3520.1 ≤ v ≤ 520.1 TCU4520.2 ≤ v ≤ 520.2 TCU4520.2 TCU4 HFR2 ≤ v ≤ 511.5 TCU4 HF3510.1511.1520.1520.2520.2 TCU4 HFR2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: [email protected]
https://process.honeywell.com

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.9MEDIUMHoneywell
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-121

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