CVE-2018-14558
Actively exploited. CVE-2018-14558 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
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.
CSIRTS triage
- What
- The command injection vulnerability allows an attacker to execute OS commands via a crafted request.
- Who is affected
- Tenda AC7, AC9, and AC10 router users are affected.
- Urgency
- Immediate action is required due to active exploitation and critical severity.
- Action
- Update the firmware of the affected routers.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 94% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2018-14558: Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerabilitycisa-kev · 2021-11-03
External references
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