WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries that allow…

Code

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No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. May 4, 2026 · NIST NVD

   Detected

   WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries that allows unauthenticated attackers to overwrite the saved return address by sending a POST request with a Content-Length header exceeding 512 bytes. Attackers can exploit insufficient length validation in the fgets() call to achieve arbitra

2. Jun 17, 2026 · NIST NVD

   Updated

   WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries that allows unauthenticated attackers to overwrite the saved return address by sending a POST request with a Content-Length header exceeding 512 bytes. Attackers can exploit insufficient length validation in the fgets() call to achieve arbitra

Sources

• CVE.orgVulnerability recordCVE-2026-41927

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-41927

  WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries that allows unauthenticated attackers to overwrite the saved return address by sending a POST request with a Content-Length

  nvd.nist.gov

References

• Reference · mstreet97.github.io
• Reference · made-in-china.com
• Reference · vulncheck.com