CVE-2023-1389

Name: CVE-2023-1389
Creator: NVD / NIST
Published: 2023-03-15T23:15:09.403+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 100.00%

Last modified Jun 17, 2026

CVE-2023-1389 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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 has confirmed active exploitation in the wild. EPSS estimates a 100.00% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

100.00%

100.0th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 22, 2023.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tp-Link	Archer Ax21 Firmware	< 1.1.4

References

http://packetstormsecurity.com/files/174131/TP-Link-Archer-AX21-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
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.tenable.com/security/research/tra-2023-11Exploit, Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-1389US Government Resource

Timeline

Published: Mar 15, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-1389?

How severe is CVE-2023-1389?

CVE-2023-1389 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 100.00% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2023-1389?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-1389?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST