CVEvulnerability

CVE-2023-1389

8.8 HIGH Known exploited Published 2023-03-15 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

TP-Link Archer AX-21 Command Injection Vulnerability — TP-Link Archer AX21

TP-Link Archer AX-21 contains a command injection vulnerability that allows for remote code execution.

Added to KEV: 2023-05-01
Remediation due: 2023-05-22
Ransomware use: Unknown
Required action: Apply updates per vendor instructions.
Notes: https://www.tp-link.com/us/support/download/archer-ax21/v3/#Firmware; https://nvd.nist.gov/vuln/detail/CVE-2023-1389

Status: Analyzed
Published: 2023-03-15
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-77

Description

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.

Affected configurations

• tp-link archer ax21 firmware (< 1.1.4)

Weakness · CWE (1)

CWE-77 Improper Neutralization of Special Elements used in a Command weakness

References