CVE-2021-38397

moderate-risk
Published 2022-10-28

Honeywell Experion PKS C200, C200E, C300, and ACE controllers are vulnerable to unrestricted file uploads, which may allow an attacker to remotely execute arbitrary code and cause a denial-of-service condition.

Do I need to act?

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0.37% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
10
CVSS 10.0/10 Critical
NETWORK / LOW complexity

Affected Products (4)

C200 Firmware
C200E Firmware
C300 Firmware
Application Control Environment Firmware

Affected Vendors

Honeywell

References (4)

Third Party Advisory https://www.cisa.gov/uscert/ics/advisories/icsa-21-278-04
Product https://www.honeywellprocess.com/library/support/notifications/Customer/SN2021-0...
Third Party Advisory https://www.cisa.gov/uscert/ics/advisories/icsa-21-278-04
Product https://www.honeywellprocess.com/library/support/notifications/Customer/SN2021-0...
44
/ 100
moderate-risk
Severity 33/34 · Critical
Exploitability 1/34 · Minimal
Exposure 10/34 · Low