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8.6
CVE-2026-76590: TRENDnet TEW-755AP WAN CGI Remote Overflow Risk
CVE-2026-76590 · published 15 days ago
Summary
The TRENDnet TEW-755AP's WAN CGI feature has a security flaw that could allow hackers to remotely crash the device. This could happen if an attacker sends a specific type of data to the device. To protect your network, update the device to the latest version or consider replacing it with a newer model.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| trendnet | tew-755ap | 20260702 |
Original advisory text
TRENDnet TEW-755AP ssi wan.cgi stack-based overflow
A vulnerability was identified in TRENDnet TEW-755AP up to 20260702. Affected by this issue is some unknown functionality of the file /cgi-bin/wan.cgi of the component ssi. Such manipulation of the argument cameo.wan.wan_pppoe_password_00 leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used.
References
Severity
8.6
High
CVSS 2.0: 9.0 (NVD)
CVSS 3.1: 9.9 (NVD)
CVSS 4.0: 8.6 (NVD)
Exploitation
EPSS <1%
Type
CWE-119Buffer Overflow
CWE-121Stack-based Buffer Overflow
Timeline
Published19 Aug 2026
Updated3 Sep 2026
First seen19 Aug 2026
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