CVE entry · CVE-2022-37055
CVE-2022-37055: D-Link Routers Buffer Overflow Vulnerability
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.
- Actively exploited: added to CISA’s KEV catalog on December 8, 2025.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: December 29, 2025.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes D-Link Routers, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (supportannouncement.us.dlink.com)
- NVD entry (NIST)
- CISA KEV catalog