CVE-2023-1389 TP-Link Archer AX21: command or code injection
In plain words: The program treats text it receives as instructions instead of plain data. The attacker can run commands on the machine — often the whole device is taken over.
Confirmed exploited by CISA on · US federal patch deadline May 22, 2023
What to do
- Install TP-Link's security update for Archer AX21. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Turn on automatic firmware updates and replace gear the maker no longer supports.
- Change default passwords and switch off remote administration and features you do not use.
- Do not put storage boxes or cameras directly on the internet — use the maker's app or a VPN.
Who is affected
Could reach you. This one is aimed at devices or apps of the kind people own.
What's at risk: Taken over in bulk to join botnets, used to watch your traffic, or — for storage boxes — locked by ransomware.
The details
- Official name
- TP-Link Archer AX-21 Command Injection Vulnerability
- Product
- TP-Link Archer AX21
- CISA description
- TP-Link Archer AX-21 contains a command injection vulnerability that allows for remote code execution.
- Type of flaw
- Command or code injection (CWE-77)
- Confirmed exploited
- May 1, 2023
- US federal patch deadline
- May 22, 2023
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Answering about CVE-2023-1389 ·
Questions about CVE-2023-1389
Is CVE-2023-1389 being exploited?
Yes. CISA added CVE-2023-1389 to its Known Exploited Vulnerabilities catalog on May 1, 2023, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2023-1389?
Install TP-Link's security update for Archer AX21. If no update exists, follow the vendor's workaround or stop using the product until one ships. Turn on automatic firmware updates and replace gear the maker no longer supports.
Am I affected by CVE-2023-1389?
Only if you use TP-Link Archer AX21. This one is aimed at devices or apps of the kind people own.