High severity · published Jul 13, 2023
CVE-2023-26597
Controller DOS on sending error response
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
C3
C300 · Honeywell
501.1 through 501.6HF8; 510.1 through 510.2HF12; 511.1 through 511.5TCU3; 520.1 through 520.1TCU4; 520.2 through 520.2TCU2; 510.1 through 511.5TCU3; +2 more · source: vendor
CF
C300 Firmware · Honeywell
501.1 through 501.6hf8; 510.1 through 510.2hf12; 511.1 through 511.5tcu3; 520.1 through 520.1tcu4; 520.2 through 520.2tcu2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26597
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-26597
Product
https://process.honeywell.com
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