Buffer overflow in Trendnet Tew-827dru
CVE-2020-14076
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 st_dev_connect, st_dev_disconnect, or st_dev_rconnect with a sufficiently long wan_type key.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (84.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_connect_overf… (Exploit, Third Party Advisory)
- github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_disconnect_ov… (Exploit, Third Party Advisory)
- github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_rconnect_over… (Exploit, Third Party Advisory)
- github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-st_dev.pdf (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-14076?
- CVE-2020-14076 is a high-severity vulnerability in Trendnet Tew-827dru, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-06-15.
- How severe is CVE-2020-14076?
- High severity. CVSS v3 base score is 8.8 out of 10.