Critical severity · published Aug 19, 2026
CVE-2026-76590
TRENDnet TEW-755AP ssi wan.cgi stack-based overflow
9.9
CVSS
0.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TE
TEW-755AP · TRENDnet
20260702 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76590
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76590
github.com
https://github.com/meishigana/CVE/blob/main/team15_20260702/15_755ap-ssi-bof/poc/poc-ssi-overflow.py
github.com
https://github.com/meishigana/CVE/tree/main/team15_20260702/15_755ap-ssi-bof
vuldb.com
https://vuldb.com/cve/CVE-2026-76590
vuldb.com
https://vuldb.com/submit/877850
vuldb.com
https://vuldb.com/vuln/393087
vuldb.com
https://vuldb.com/vuln/393087/cti
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