CVE-2026-19959CWE-119CWE-121

CVE-2026-19959

Critical · published August 17, 2026

CVSS v3.1
9.9
EPSS
1%
Percentile
56.3
In the wild
Unconfirmed
What it is

A weakness has been identified in Edimax EW-7478APC 1.04. This affects the function formWanTcpipSetup of the file /goform/formWanTcpipSetup. This manipulation of the argument pppUserName causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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
0.00805 · 56.3th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-08-17T03:16Z
References (5)
https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-formWanTcpipSetup-34b53a41781f8047b36bd11dbcaa84dc?source=copy_link · [email protected]https://vuldb.com/cve/CVE-2026-19959 · [email protected]https://vuldb.com/submit/872873 · [email protected]https://vuldb.com/vuln/391136 · [email protected]https://vuldb.com/vuln/391136/cti · [email protected]
EPSS history
Timeline
  • 16 AUG 22:30Z
    Edimax EW-7478APC formWanTcpipSetup stack-based overflow
    cvelistv5