High 8.8Known exploited (CISA KEV)Published Mar 15, 2023

CVE-2023-1389TP-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 manage…

Updated under an hour ago (2026-10-19 06:10 UTC)

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It affects tp-link archer_ax21_firmware. Add what you run to find out whether that includes you.

CISA lists it as known exploited since May 1, 2023; federal agencies had to remediate by May 22, 2023. Treat that date as your deadline.

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Every CVE for tp-link archer_ax21_firmware

Exploited in the last 30 days

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: 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-77
Known exploited: Added to CISA KEV May 1, 2023; federal remediation due May 22, 2023Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 100.00% (percentile 100)
Assigned by: tenable
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

tp-link archer_ax21_firmware tp-link:archer_ax21_firmware	before 1.1.4	NVD

References

https://www.tenable.com/security/research/tra-2023-11exploit, third-party-advisory
http://packetstormsecurity.com/files/174131/TP-Link-Archer-AX21-Command-Injection.htmlexploit, third-party-advisory, vdb-entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-1389us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.