Cyber Resilience

CVE-2021-35978

CriticalRCE

Published: 10 December 2021

Published
10 December 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0807 92.3th percentile
Risk Priority 24 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-35978 is a critical-severity Command Injection (CWE-77) vulnerability in Digi Transport Wr41 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 7.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

overwriting firmware, adding/removing users, disabling the internal firewall, etc.

CWE(s)
CWE-77

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

digi
transport dr64 firmware
≤ 5.2.4.9
digi
transport sr44 firmware
all versions
digi
transport vc74 firmware
≤ 5.2.4.9
digi
transport wr11 firmware
≤ 8.2.1.3
digi
transport wr11 xt firmware
≤ 8.2.1.3
digi
transport wr21 firmware
≤ 8.2.1.3
digi
transport wr31 firmware
≤ 8.2.1.3
digi
transport wr41 firmware
5.0.0.0 — 5.2.4.6 · 6.0.0.0 — 6.1.3.5 · 8.0.0.0 — 8.3.1.2
digi
transport wr44 firmware
≤ 8.3.1.2

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References