CVE-2021-35978
9.8 · CRITICALOverview
CVE-2021-35978 is a critical-severity vulnerability affecting digi transport_dr64_firmware. It was published on December 10, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An issue was discovered in Digi TransPort DR64, SR44 VC74, and WR. The ZING protocol allows arbitrary remote command execution with SUPER privileges. This allows an attacker (with knowledge of the protocol) to execute arbitrary code on the controller including overwriting firmware, adding/removing users, disabling the internal firewall, etc.
Remediation
Check the references section for vendor advisories and patches from digi. Update transport_dr64_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| digi | transport_dr64_firmware | 0 | Affected |
| digi | transport_vc74_firmware | 0 | Affected |
| digi | transport_wr11_firmware | 0 | Affected |
| digi | transport_wr11_xt_firmware | 0 | Affected |
| digi | transport_wr21_firmware | 0 | Affected |
| digi | transport_wr31_firmware | 0 | Affected |
| digi | transport_wr41_firmware | 5.0.0.0 | Affected |
| digi | transport_wr44_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2021-35978?
CVE-2021-35978 is a critical-severity vulnerability affecting digi transport_dr64_firmware. It was published on December 10, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2021-35978?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-35978?
Check the references section for vendor advisories and patches from digi. Update transport_dr64_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-35978?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-35978 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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