Read the docs
TI-2023-01313 Aliases CVE-2023-1389GHSA-h49r-m2rg-6pgf

Command injection in TP-Link Archer AX21

Priority CRITICAL 97Exploited in the wildCWE-77Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-77.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2023-05-01CISA due date 2023-05-22
EPSS 0.99999 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—TP-Link Archer AX21 (AX1800)All versions prior to version 1.14 Build 20230219—No fix listedCNA
  • TP-Link Archer AX21 (AX1800) Vendor— Affected All versions prior to version 1.14 Build 20230219 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:archer_ax21_firmware:*:*:*:*:*:*:*:*before 1.1.4VulnerableTP-Link
cpe:2.3:h:tp-link:archer_ax21:-:*:*:*:*:*:*:*not specified by NVDRunning onTP-Link
  • cpe:2.3:o:tp-link:archer_ax21_firmware:*:*:*:*:*:*:*:* Versions before 1.1.4 Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:archer_ax21:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2023-05-01 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2023-1389
  3. 2026-10-03 Alias added: GHSA-h49r-m2rg-6pgf

References

Exploit 2

  • TI-2023-15182 TP-Link Archer AX21(US)_V3_1.1.4 Build 20230219 and AX21(US)_V3.6_1.1.4 Build 20230219… CVSS 3.1CRITICAL 9.8
  • TI-2023-12094 Race condition in TP-Link AX1800 CVSS 3.1HIGH 8.1
  • TI-2023-12081 Stack-based buffer overflow in TP-Link AX1800 CVSS 3.0HIGH 8.8
  • TI-2023-12067 Stack-based buffer overflow in TP-Link Archer AX21 CVSS 3.0HIGH 8.8
  • TI-2023-12068 Stack-based buffer overflow in TP-Link Archer AX21 CVSS 3.0MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences