CVE-2021-22744

LOW
3.9
CVSS Score
Published: May 26, 2021 at 07:20 PM UTC
Updated: June 17, 2026 at 03:37 AM UTC
4 products affected across 1 vendorTcm 4351B FirmwareTriconex Model 3009 Mp FirmwareTriconex TCM 4351B

Using Triconex Model 3009 MP installed on Tricon V11.3.x systems by N/A?

Get instant alerts when new vulnerabilities affect Triconex Model 3009 MP installed on Tricon V11.3.x systems - before attackers find them.

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Severity
LOW3.9
Exploit prediction
EPSS 0.2%

Description

Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex Model 3009 MP installed on Tricon V11.3.x systems that could cause module reset when TCM receives malformed TriStation packets while the write-protect keyswitch is in the program position. This CVE ID is unique from CVE-2021-22742, CVE-2021-22745, CVE-2021-22746, and CVE-2021-22747.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

11.3.0 ≤ v < 11.5.111.7.0
Affected range stops below 11.5.1, so it looks safe — our inference, not a vendor statement
schneider-electric-tcm-4351b (same device)
11.3.0 ≤ v < 11.8.0
Affected range stops below 11.8.0, so it looks safe — our inference, not a vendor statement
schneider-electric-triconex-model-3009-mp (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
PHYSICAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-754

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