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Exploited vulnerability · CISA KEV

Is CVE-2022-37055 exploited? Yes: in CISA KEV since 8 Dec 2025

Gociux · D-Link Routers · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-37055, D-Link Routers Buffer Overflow Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 8 Dec 2025, 1198 days after it was published. It affects D-Link Routers. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 8 Dec 2025
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due29 Dec 2025BOD 22-01 deadline

What it is

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.

VendorD-Link (26 exploited CVEs in KEV)
ProductRouters
VulnerabilityD-Link Routers Buffer Overflow Vulnerability
WeaknessCWE-120
Published28 Aug 2022
Added to KEV8 Dec 2025
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for Routers in your asset inventory, including appliances and cloud images. Stack check lists every exploited D-Link CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 28 Aug 2022.
  4. Get told next time. Email alerts when CISA adds a CVE for D-Link.

References

Questions

Is CVE-2022-37055 being exploited?

Yes. CISA added CVE-2022-37055 to the Known Exploited Vulnerabilities catalog on 8 Dec 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2022-37055 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2022-37055?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check D-Link's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Routers and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in December 2025 · D-Link scorecard · act-now radar.

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