Vulnerability · Published Jun 29, 2026 · Assigned by VulDB

CVE-2026-13580Edimax EW-7478APC POST Request formQoS buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in EW-7478APC from Edimax. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.8%top 43.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A security vulnerability has been detected in Edimax EW-7478APC 1.04. This affects the function formQoS of the file /goform/formQoS of the component POST Request Handler. The manipulation of the argument selSSID leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
Edimax	EW-7478APC	1.04

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-374586 | Edimax EW-7478APC POST Request formQoS buffer overflow vdb-entry, technical-description
VDB-374586 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-13580 | CVE Analysis and Report third-party-advisory
Submit #844115 | EDIMAX EW-7478APC EW-7478APC 1.04 Buffer Overflow third-party-advisory
https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-formQoS-34b53a41781f8095bffacdea103a82d1 broken-link, exploit