CVE-2023-1389
KEVTP-Link Archer AX-21 Command Injection Vulnerability
Description
TP-Link Archer AX-21 contains a command injection vulnerability that allows for remote code execution.
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.
CVSS 3.1 vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HPublishedMar 15, 2023
Last modifiedJun 17, 2026
Added to KEVMay 1, 2023
Remediation dueMay 22, 2023
References
- packetstormsecurity.com/files/174131/TP-Link-Archer-AX21-Command-Injection.htmlExploitThird Party Advisory
- tenable.com/security/research/tra-2023-11ExploitThird Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-1389US Government Resource
0 recent articles mention this CVE
84
Risk assessment · Critical
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1254 days
- CVSS
- 8.8 HIGH
- EPSS (30-day exploit probability)
- 100.0% · top 1% of all CVEs
- Weakness
- CWE-77
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.