Vulnerability Intelligence Report
TP-Link Archer AX-21 Command Injection Vulnerability
CVE-2023-1389
TP-Link Archer AX21 (AX1800) firmware versions before 1.1.4 Build 20230219 contained a command injection vulnerability in the country form of the /cgi-bin/luci;stok=/locale endpoint on the web management interface. Specifically, the country parameter of the write operation was not sanitized before being used in a call to popen(), allowing an unauthenticated attacker to inject commands, which would be run as root, with a simple POST request.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:100.00%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-77 ↗CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| tp-link | archer_ax21_firmware | all |
| tp-link | archer_ax21 | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.999%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Tenable Network Security, Inc. · Vendor · USA |
| Reserved | 2023-03-14T00:00:00 |
| Published | 2023-03-15T00:00:00 |
| Last Updated | 2025-10-21T23:15:23 |
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