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  3. CVE-2021-40407
Exploited in the wildRouters, cameras & storage boxesCould reach you

CVE-2021-40407 Reolink RLC-410W IP Camera: 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 Jan 8, 2025

What to do

  1. Install Reolink's security update for RLC-410W IP Camera. If no update exists, follow the vendor's workaround or stop using the product until one ships.
  2. Turn on automatic firmware updates and replace gear the maker no longer supports.
  3. Change default passwords and switch off remote administration and features you do not use.
  4. Do not put storage boxes or cameras directly on the internet — use the maker's app or a VPN.

Read Reolink's advisory ↗

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
Reolink RLC-410W IP Camera OS Command Injection Vulnerability
Product
Reolink RLC-410W IP Camera
CISA description
Reolink RLC-410W IP cameras contain an authenticated OS command injection vulnerability in the device network settings functionality.
Type of flaw
Command or code injection (CWE-78)
Confirmed exploited
Dec 18, 2024
US federal patch deadline
Jan 8, 2025

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Answering about CVE-2021-40407 ·

Questions about CVE-2021-40407

Is CVE-2021-40407 being exploited?

Yes. CISA added CVE-2021-40407 to its Known Exploited Vulnerabilities catalog on Dec 18, 2024, which means there is reliable evidence of real-world attacks.

How do I fix CVE-2021-40407?

Install Reolink's security update for RLC-410W IP Camera. 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-2021-40407?

Only if you use Reolink RLC-410W IP Camera. This one is aimed at devices or apps of the kind people own.

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