CVE-2021-37188

HIGH
8.8
CVSS Score
Published: December 10, 2021 at 12:46 PM UTC
Updated: June 17, 2026 at 04:00 AM UTC
17 products affected across 1 vendorTransport WR11 Xt FirmwareTransport WR21 FirmwareTransport WR44 Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 0.5%

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.

Affected

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

v ≤ 5.2.4.9
digi-transport-sr44 (environment) · digi-transport-dr64 (same device)
v ≤ 5.2.4.9
digi-transport-vc74 (same device)
v ≤ 8.2.1.3
digi-transport-wr11 (same device)
v ≤ 8.2.1.3
digi-transport-wr11-xt (same device)
v ≤ 8.2.1.3
digi-transport-wr21 (same device)
v ≤ 8.2.1.3
digi-transport-wr31 (same device)
5.0.0.0 ≤ v ≤ 5.2.4.66.0.0.0 ≤ v ≤ 6.1.3.58.0.0.0 ≤ v ≤ 8.3.1.2
digi-transport-wr41 (same device)
v ≤ 8.3.1.2
digi-transport-wr44 (same device)
All versions
All versions

Remediation

No guide yet

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

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-345

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