CVE-2021-37189: Digi Transport WR11 Firmware

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• Digi Transport WR11 Firmware: before 6.0.0.0 (fixed in 6.0.0.0)
• Digi Transport WR11 Xt Firmware: before 6.0.0.0 (fixed in 6.0.0.0)
• Digi Transport WR21 Firmware: before 6.0.0.0 (fixed in 6.0.0.0)
• Digi Transport WR31 Firmware: before 6.0.0.0 (fixed in 6.0.0.0)
• Digi Transport WR41 Firmware: before 6.0.0.0 (fixed in 6.0.0.0)
• Digi Transport WR44 Firmware: before 6.0.0.0 (fixed in 6.0.0.0)

Published 2021-12-10. Last modified 2026-06-17.