Technical Severity
CRITICAL
CVSS v3.1 Metrics
9.8
/ 10
Minimal Risk
Critical
Vector Specification
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Likelihood
EPSS Prediction
76.77
%
Predictive Probability
Percentile Rank
98.9
th
Documented as more likely to be exploited than 98.9% of known CVEs.
Detection Date
Nov 03, 2021
Remediation Due
May 03, 2022
CISA Catalog Active
Threat Analysis
Tenda AC7, AC9, and AC10 devices contain a command injection vulnerability due to the "formsetUsbUnload" function executes a dosystemCmd function with untrusted input. Successful exploitation allows an attacker to execute OS commands via a crafted goform/setUsbUnload request.
Remediation Directive
Apply updates per vendor instructions.