What’s Vulnerable › Vulnerabilities

CVE-2020-14080

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-15 · updated 2026-06-17
• Weakness: CWE-787

Description

TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an unauthenticated user to execute arbitrary code by POSTing to apply_sec.cgi via the action ping_test with a sufficiently long ping_ipaddr key.

Affected products

• Trendnet AC2600 TEW-827DRU: through 2.06b04

References

• https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-ping_test.pdf
• https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/ping_test_overflow.pdf
• https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-ping_test.pdf
• https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/ping_test_overflow.pdf

Get alerted when CVE-2020-14080 or the next vulnerability affects your stack