CVE-2026-19961: Edimax EW-7478APC formWlSiteSurvey buffer overflow

Severity: critical (CVSS 9.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-16 · updated 2026-08-20
Weakness: CWE-119

Description

A vulnerability was detected in Edimax EW-7478APC 1.04. Affected is the function formWlSiteSurvey of the file /goform/formWlSiteSurvey. Performing a manipulation of the argument selSSID results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

Edimax EW-7478APC: 1.04

References

https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-formWlSiteSurvey-34b53a41781f804fb328d87416095401?source=copy_link
https://vuldb.com/cve/CVE-2026-19961
https://vuldb.com/submit/872875
https://vuldb.com/vuln/391138
https://vuldb.com/vuln/391138/cti

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