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Vulnerability record · CVE-2026-19959 · published 16 August 2026

CVE-2026-19959: Memory buffer overflow vulnerability

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.

8.6 CVSS 4.0 High EPSS 0.80% · top 45.0% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow Deferred
8.6CVSS 4.0 base score, v2 9.0
0.80%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
20 Aug 2026Last modified by NVD

Description

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.

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-formWanTcpipSetup-34b53a41781f8047b36bd11dbcaa84dc?source=cop
https://vuldb.com/cve/CVE-2026-19959
https://vuldb.com/submit/872873
https://vuldb.com/vuln/391136
https://vuldb.com/vuln/391136/cti

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Source: NIST National Vulnerability Database (record CVE-2026-19959), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.