Is CVE-2021-37188 actively exploited?

No active exploitation of CVE-2021-37188 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-37188 be exploited remotely?

Yes. CVE-2021-37188 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-37188?

CVE-2021-37188 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2021-37188

HIGH

CVE-2021-37188

CWE-345Published: December 10, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

An issue was discovered on Digi TransPort devices through 2021-07-21. An authenticated attacker may load customized firmware (because the bootloader does not verify that it is authentic), changing the behavior of the gateway.

NVD Source

Technical Analysis

CVE-2021-37188 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

digi17 product(s)

transport dr64 firmwaretransport dr64transport sr44transport vc74 firmwaretransport vc74transport wr11 firmwaretransport wr11transport wr11 xt firmwaretransport wr11 xttransport wr21 firmwaretransport wr21transport wr31 firmware+5

Source: NVD CPE · 18 total CPE entries