CVE-2026-76590CWE-119CWE-121

CVE-2026-76590

Critical · published August 20, 2026

CVSS v3.1
9.9
EPSS
1%
Percentile
57.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
9.4 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
EPSS
0.00854 · 57.9th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-08-20T02:17Z
References (6)
https://github.com/meishigana/CVE/blob/main/team15_20260702/15_755ap-ssi-bof/poc/poc-ssi-overflow.py · [email protected]https://github.com/meishigana/CVE/tree/main/team15_20260702/15_755ap-ssi-bof · [email protected]https://vuldb.com/cve/CVE-2026-76590 · [email protected]https://vuldb.com/submit/877850 · [email protected]https://vuldb.com/vuln/393087 · [email protected]https://vuldb.com/vuln/393087/cti · [email protected]
EPSS history
Timeline
  • 19 AUG 21:45Z
    TRENDnet TEW-755AP ssi wan.cgi stack-based overflow
    cvelistv5