CVE-2022-37055 D-Link Routers: memory-safety flaw
In plain words: The program mishandles the memory it uses to keep track of data. A specially made input can scramble that memory. Usually lets an attacker crash the program or run their own code with its permissions.
Confirmed exploited by CISA on · US federal patch deadline Dec 29, 2025
What to do
- Install D-Link's security update for 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
- D-Link Routers Buffer Overflow Vulnerability
- Product
- D-Link Routers
- CISA description
- D-Link Routers contains a buffer overflow vulnerability that has a high impact on confidentiality, integrity, and availability. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
- Type of flaw
- Memory-safety flaw (CWE-120)
- Confirmed exploited
- Dec 8, 2025
- US federal patch deadline
- Dec 29, 2025
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Answering about CVE-2022-37055 ·
Questions about CVE-2022-37055
Is CVE-2022-37055 being exploited?
Yes. CISA added CVE-2022-37055 to its Known Exploited Vulnerabilities catalog on Dec 8, 2025, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2022-37055?
Install D-Link's security update for 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-2022-37055?
Only if you use D-Link Routers. This one is aimed at devices or apps of the kind people own.