CVE-2021-35978
9.8
CRITICAL · CVSS 3.1 · EPSS 3.7% (pctl 89)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.68% — more likely to be exploited than 89% of all CVEs |
| Weakness | CWE-77 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-12-10 |
| Last modified | 2026-06-17 |
Affected (18)
| Vendor | Product |
|---|---|
| digi | transport dr64 |
| digi | transport dr64 firmware |
| digi | transport sr44 |
| digi | transport sr44 firmware |
| digi | transport vc74 |
| digi | transport vc74 firmware |
| digi | transport wr11 |
| digi | transport wr11 firmware |
| digi | transport wr11 xt |
| digi | transport wr11 xt firmware |
| digi | transport wr21 |
| digi | transport wr21 firmware |
| digi | transport wr31 |
| digi | transport wr31 firmware |
| digi | transport wr41 |
| digi | transport wr41 firmware |
| digi | transport wr44 |
| digi | transport wr44 firmware |
References
→ the Explorer · watch your stack · NVD