Home/CVE/Controller DoS due to buffer overflow in the handling of a specially crafted message received by the controller. See Ho
CVE

CVE-2023-26597

Controller DoS due to buffer overflow in the handling of a specially crafted message received by the controller. See Ho

Controller DoS due to buffer overflow in the handling of a specially crafted message received by the controller. See Honeywell Security Notification for recommendations on upgrading and versioning. See Honeywell Security Notification for recommendations on upgrading and versioning.

HIGH · CVSS 7.5 EPSS 0.00074
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

5
honeywell c300 firmware>= 501.1 and <= 501.6hf8
honeywell c300 firmware>= 510.1 and <= 510.2hf12
honeywell c300 firmware>= 511.1 and <= 511.5tcu3
honeywell c300 firmware>= 520.1 and <= 520.1tcu4
honeywell c300 firmware>= 520.2 and <= 520.2tcu2
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · psirt@honeywell.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Jul 2023 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2023-icsa-23-194-06
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://process.honeywell.comProduct
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