CVE-2020-14078
mediumpriority · track · 36EPSS 0.018 · 78 %ileEUUSEPSS · scored 2026-10-28
TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated user to execute arbitrary code by POSTing to apply.cgi via the action wifi_captive_portal_login with a sufficiently long REMOTE_ADDR key.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-wifi_captive.pdfcnnvd
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/wifi_captive_portal_login_overflow.pdfcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-14078cnnvd
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-wifi_captive.pdfenisa_euvd
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/wifi_captive_portal_login_overflow.pdfenisa_euvd
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-wifi_captive.pdfThird Party Advisorynvd
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/wifi_captive_portal_login_overflow.pdfThird Party Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan