CVE-2020-8515 DrayTek Multiple Vigor Routers: 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 DrayTek's security update for Multiple Vigor Routers. 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
- Multiple DrayTek Vigor Routers Web Management Page Vulnerability
- Product
- DrayTek Multiple Vigor Routers
- CISA description
- DrayTek Vigor3900, Vigor2960, and Vigor300B routers contain an unspecified vulnerability that allows 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
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Answering about CVE-2020-8515 ·
Questions about CVE-2020-8515
Is CVE-2020-8515 being exploited?
Yes. CISA added CVE-2020-8515 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-2020-8515?
Install DrayTek's security update for Multiple Vigor Routers. 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-2020-8515?
Only if you use DrayTek Multiple Vigor Routers. This one is aimed at devices or apps of the kind people own.