CVE-2026-76589: TRENDnet TEW-755AP mycli FUN_401000 stack-based overflow

Severity: critical (CVSS 9.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-19 · updated 2026-08-25
Weakness: CWE-119

Description

A vulnerability was found in TRENDnet TEW-755AP up to 20260702. Affected is the function FUN_401000 of the file /sbin/mycli. The manipulation of the argument ssid results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.

Affected products

TRENDnet TEW-755AP: 20260702

References

https://github.com/meishigana/CVE/blob/main/team15_20260702/13_755ap-mycli-bof/poc/poc-mycli-overflow.py
https://github.com/meishigana/CVE/tree/main/team15_20260702/13_755ap-mycli-bof
https://vuldb.com/cve/CVE-2026-76589
https://vuldb.com/submit/877845
https://vuldb.com/vuln/393085
https://vuldb.com/vuln/393085/cti

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