CVE-2020-25506 D-Link DNS-320 Device: 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 3, 2022
What to do
- Install D-Link's security update for DNS-320 Device. 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
- D-Link DNS-320 Device Command Injection Vulnerability
- Product
- D-Link DNS-320 Device
- CISA description
- D-Link DNS-320 device contains a command injection vulnerability in the sytem_mgr.cgi component that may allow for remote code execution.
- Type of flaw
- Command or code injection (CWE-78)
- Confirmed exploited
- Nov 3, 2021
- US federal patch deadline
- May 3, 2022
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2020-25506 ·
Questions about CVE-2020-25506
Is CVE-2020-25506 being exploited?
Yes. CISA added CVE-2020-25506 to its Known Exploited Vulnerabilities catalog on Nov 3, 2021, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2020-25506?
Install D-Link's security update for DNS-320 Device. 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-2020-25506?
Only if you use D-Link DNS-320 Device. This one is aimed at devices or apps of the kind people own.