CVE-2020-14078

8.8 HIGH 2% exploit odds No fix listed

What it is

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.

At a glance

Exploitability: Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 1.8% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2020-06-15 00:00 UTC ReservedThe CVE id was reserved by its CNA
2020-06-15 04:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:54 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.8% in the next 30 days (EPSS).
Severity: 8.8 HIGH (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2020-06-15 04:15 UTC
Last modified: 2026-06-17 02:54 UTC
Exploit probability: 1.8% · EPSS, next 30 days
Weakness: CWE-787 · Out-of-bounds write
Record status: Modified

Affected

Trendnet tew-827dru Firmware ≤ 2.06b04

Attack profile CVSS 3.1 · 8.8

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2020-14078.md and follow it. Check whether this project is affected by CVE-2020-14078. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record