CVE-2020-14076: trendnet tew-827dru_firmware Out-of-bounds Write
Vulnerability summary
CVE-2020-14076 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in trendnet tew-827dru_firmware. EPSS estimates a 2.62% chance of exploitation in the next 30 days, higher than 85.3% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 15-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
2.62%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
0.00 pp
From 2.62% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundIotfirmware
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Trendnet1 product
- tew-827dru_firmware≤ 2.06b04
1 vendor · 1 product
References
4 links- github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_connect_overflow.pdfX Refsource MISCExploitThird Party Advisory
- github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_disconnect_overflow.pdfX Refsource MISCExploitThird Party Advisory
- github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_rconnect_overflow.pdfX Refsource MISCExploitThird Party Advisory
- github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-st_dev.pdfX Refsource MISCThird Party Advisory