TP-Link Archer AX-21 Command Injection Vulnerability

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Summary

CVECVE-2023-1389
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-03-15 23:15:00 UTC
Updated2023-08-11 15:15:00 UTC
DescriptionTP-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.

Risk And Classification

EPSS: 0.999990000 probability, percentile 0.999920000 (date 2026-07-22)

CISA KEV: Listed on 2023-05-01; due 2023-05-22; ransomware use Unknown

Problem Types: CWE-77

CISA Known Exploited Vulnerability

VendorTP-Link
ProductArcher AX21
NameTP-Link Archer AX-21 Command Injection Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://www.tp-link.com/us/support/download/archer-ax21/v3/#Firmware; https://nvd.nist.gov/vuln/detail/CVE-2023-1389

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Tp-link Archer Ax21 - All All All
Operating System Tp-link Archer Ax21 Firmware All All All All

References

ReferenceSourceLinkTags
Unauthenticated Command Injection in TP-Link Archer AX21 (AX1800) - Research Advisory | Tenable® MISC www.tenable.com
TP-Link Archer AX21 Command Injection ≈ Packet Storm MISC packetstormsecurity.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Legacy QID Mappings

  • 730796 TP-Link Archer AX21 (AX1800) Unauthenticated Command Injection Vulnerability

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