CVE-2021-37189

Name: CVE-2021-37189
Creator: NVD / NIST
Published: 2021-12-10T13:15:07.753+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2021-37189 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered on Digi TransPort Gateway devices through 5.2.13.4. They do not set the Secure attribute for sensitive cookies in HTTPS sessions, which could cause the user agent to send those cookies in cleartext over an HTTP session.. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

An issue was discovered on Digi TransPort Gateway devices through 5.2.13.4. They do not set the Secure attribute for sensitive cookies in HTTPS sessions, which could cause the user agent to send those cookies in cleartext over an HTTP session.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.59%

43.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-311

Affected Software

Vendor	Product	Versions
Digi	Transport Wr11 Firmware	< 6.0.0.0
Digi	Transport Wr11 Xt Firmware	< 6.0.0.0
Digi	Transport Wr21 Firmware	< 6.0.0.0
Digi	Transport Wr31 Firmware	< 6.0.0.0
Digi	Transport Wr41 Firmware	< 6.0.0.0
Digi	Transport Wr44 Firmware	< 6.0.0.0

References

https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-04.txtThird Party Advisory
https://www.digi.com/search/results?q=transportVendor Advisory
https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-04.txtThird Party Advisory
https://www.digi.com/search/results?q=transportVendor Advisory

Timeline

Published: Dec 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-37189?

How severe is CVE-2021-37189?

CVE-2021-37189 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2021-37189?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-37189?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST