CVE-2023-1389: TP-Link Archer AX21 (AX1800) · Command Injection
Affects TP-Link Archer AX21 (AX1800)Source CVE Database V5
Exploited in the wild · KEV due 22 May 2023 · public exploit available (Exploit-DB) · 99% EPSS : upgrade to 1.14 now.
Data as of 26 Oct 2026, 10:12 UTC
- KEV deadline
- US federal agencies must patch by this date; a sensible deadline for everyone else.
- EPSS
- 99.9% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.14
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 15 Mar 2023
Detectable: evidence found.
nuclei template: TP-Link Archer AX21 (AX1800) - Unauthenticated Command Injection
Weaponised: evidence found.
Exploited in the wildExploited: evidence found.
Listed in CISA KEV 47 days after disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by Tenable Network Security, Inc.
, 1 day before disclosure
CVE published
on cve.org
, t = 0
Added to CISA KEV (opens in a new tab)
exploitation confirmed
, 47 days after disclosure
KEV remediation due
US federal deadline
, 68 days after disclosure
First Exploit-DB entry (opens in a new tab)
TP-Link Archer AX21 - Unauthenticated Command Injection
, 148 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade TP-Link Archer AX21 (AX1800) to 1.14.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| TP-Link TP-Link Archer AX21 (AX1800) | Affected
| Fixed in
|
Check the firmware or software version for TP-Link Archer AX21 (AX1800) in the device's admin interface against the vendor advisory.
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.