CVE-2021-32970

Moxa NPort IAW5000A-I/O Series Serial Device Server Improper Input Validation

HIGH
7.5
CVSS Score
Published: April 1, 2022 at 10:17 PM UTC
Updated: June 17, 2026 at 03:53 AM UTC
9 products affected across 1 vendorNport IAW5250A 6I /o FirmwareNport IAW5150A 12I /o FirmwareNport IAW5250A 12I /o Firmware

Using NPort IAW5000A-I/O series firmware by Moxa?

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Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

Data can be copied without validation in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier, which may allow a remote attacker to cause denial-of-service conditions.

Affected

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

v ≤ 2.2
moxa-nport-iaw5150a-12i-o (same device)
v ≤ 2.2
moxa-nport-iaw5150a-6i-o (same device)
v ≤ 2.2
moxa-nport-iaw5250a-12i-o (same device)
v ≤ 2.2
moxa-nport-iaw5250a-6i-o (same device)
All versions
All versions
All versions
All versions

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHicscert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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