CVE Tools
Sign in

CVE-2021-38395

Honeywell Experion PKS and ACE Controllers Injection

Published: Oct 28, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-74
9.1CRITICAL
NVD MITRE
EPSS Score
0.9%
Top 43.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-74

Affected Products

Honeywell
commercial·USaka experion server, saia pg5 controls suite, experion pks
Experion PKS
ICS / OT / IoT
c200 firmware
ICS / OT / IoT
c200e firmware
ICS / OT / IoT
c300 firmware
ICS / OT / IoT
application control environment firmware
ICS / OT / IoT
Honeywell Internatioinal Inc.
commercial·USaka experion lx, experion pks, honeywell international, experion plantcruise
Experion Process Knowledge System C200Embedded
ICS / OT / IoT / plc-scada-hmi
Experion Process Knowledge System C200EEmbedded
ICS / OT / IoT / plc-scada-hmi
Experion Process Knowledge System C300 and ACEEmbedded
ICS / OT / IoT / plc-scada-hmi

Exploitability

Official Patch Available
Workaround Available
Is your org exposed to CVE-2021-38395?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://ics-cert.us-cert.gov/advisories/icsa-21-278-04
ics-cert.us-cert.gov
https://www.cybersecurity-help.cz/vdb/SB2021100608
cybersecurity-help.cz
https://www.securitylab.ru/news/525334.php
securitylab.ru
and 13 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-38395 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows