CVE-2026-76590

CRITICAL 9.9

TRENDnet TEW-755AP ssi wan.cgi stack-based overflow

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	trendnet
Product	tew-755ap
Published	Aug 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TRENDnet / TEW-755AP

20260702

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/393087 vuldb.com: https://vuldb.com/vuln/393087/cti vuldb.com: https://vuldb.com/cve/CVE-2026-76590 vuldb.com: https://vuldb.com/submit/877850 github.com: https://github.com/meishigana/CVE/tree/main/team15_20260702/15_755ap-ssi-bof github.com: https://github.com/meishigana/CVE/blob/main/team15_20260702/15_755ap-ssi-bof/poc/poc-ssi-overflow.py

Credits

🔍 fuhanhan2015 (VulDB User)