CVE-2021-38395

Honeywell Experion PKS and ACE Controllers Injection

Description

Honeywell Experion PKS C200, C200E, C300, and ACE controllers are vulnerable to improper neutralization of special elements in output, which may allow an attacker to remotely execute arbitrary code and cause a denial-of-service condition.

Remediation

Workaround:

  • Honeywell recommends users follow all guidance in the Experion Network and Security Planning Guide to prevent attacks by malicious actors. Additional information can be found in Honeywell Support document SN2021-02-22-01.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.13%
Third-Party Advisory cisa.gov
Affected: Honeywell Experion PKS
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/uscert/ics/advisories/icsa-21-278-04 us government resource third party advisory mitigation
https://www.honeywellprocess.com/library/support/notifications/Customer/SN2021-02-22-01-Experion-C300-CCL.pdf product

Frequently Asked Questions

What is the severity of CVE-2021-38395?
CVE-2021-38395 has been scored as a critical severity vulnerability.
How to fix CVE-2021-38395?
As a workaround for remediating CVE-2021-38395: Honeywell recommends users follow all guidance in the Experion Network and Security Planning Guide to prevent attacks by malicious actors. Additional information can be found in Honeywell Support document SN2021-02-22-01.
Is CVE-2021-38395 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-38395 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-38395?
CVE-2021-38395 affects Honeywell Experion PKS.
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