CVE-2018-20334

9.8 criticalEPSS 3.8%

Critical (9.8) in asus asuswrt. EPSS 3.8% chance of exploitation in the next 30 days.

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. When processing the /start_apply.htm POST data, there is a command injection issue via shell metacharacters in the fb_email parameter. By using this issue, an attacker can control the router and get shell.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.8% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2020-03-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

asus:asuswrt

References

https://starlabs.sg/advisories/18-20334/
https://starlabs.sg/advisories/18-20334/

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