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CVE-2023-1389

8.8, high Known exploited

TP-Link Archer AX-21 Command Injection Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
100% higher than 99.9% of scored CVEs
Exploitation
Confirmed in the wild
Published
15 Mar 20233 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 1 May 2023. US federal agencies had to remediate by 22 May 2023, a deadline that has passed.

Required action. Apply updates per vendor instructions.

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.

Details

Vendor
TP-Link
Product
TP-Link Archer AX21 (AX1800)
Weakness
CWE-77 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
vulnreport@tenable.com

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

References 3

Exploit code 2

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other TP-Link CVEs

Every TP-Link CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2025-9377 TP-Link Archer C7(EU) and TL-WR841N/ND(MS) OS Command Injection Vulnerability KEV EPSS 38% 7.2, high
  • CVE-2023-50224 TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability KEV EPSS 20% 6.5, medium
  • CVE-2023-33538 TP-Link Multiple Routers Command Injection Vulnerability KEV EPSS 42% 8.8, high
  • CVE-2020-24363 TP-link TL-WA855RE Missing Authentication for Critical Function Vulnerability KEV EPSS 22% 8.8, high
  • CVE-2015-3035 TP-Link Multiple Archer Devices Directory Traversal Vulnerability KEV EPSS 84% 7.5, high

Beyond this page

Is CVE-2023-1389 in your network?

This page tells you how dangerous CVE-2023-1389 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2023-1389 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.