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CVE-2021-37188

26
FAUCET Score

CVE-2021-37188 describes a critical vulnerability in Digi TransPort devices, allowing an authenticated attacker to install unverified, customized firmware due to a lack of bootloader authentication. This flaw carries a high CVSS score of 8.8, indicating that it can be exploited remotely with low complexity by an authenticated user, leading to complete compromise of confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is no evidence of active exploitation or significant community discussion, the potential for severe impact necessitates prompt remediation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.2.4.9CPE matchmatch criteria
cpe:2.3:o:digi:transport_dr64_firmware:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:digi:transport_dr64_firmware:-:*:*:*:*:*:*:*
<= 5.2.4.9CPE matchmatch criteria
cpe:2.3:o:digi:transport_vc74_firmware:*:*:*:*:*:*:*:*
<= 8.2.1.3CPE matchmatch criteria
cpe:2.3:o:digi:transport_wr11_firmware:*:*:*:*:*:*:*:*
<= 8.2.1.3CPE matchmatch criteria
cpe:2.3:o:digi:transport_wr11_xt_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 26th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

raw.githubusercontent.com / reidmefirst/vuln-disclosure/main/2021-04.txt
Third Party Advisory
digi.com / search/results
Vendor Advisory