Vulnerability · Published Jun 29, 2026 · Assigned by VulDB

CVE-2026-13582Edimax EW-7478APC POST Request formUSBAccount 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 flaw has been found in Edimax EW-7478APC 1.04. This issue affects the function formUSBAccount of the file /goform/formUSBAccount of the component POST Request Handler. This manipulation of the argument UserName/Password causes buffer overflow. The attack is possible to be carried out remotely. The exploit has been published 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-374588 | Edimax EW-7478APC POST Request formUSBAccount buffer overflow vdb-entry, technical-description
VDB-374588 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-13582 | CVE Analysis and Report third-party-advisory
Submit #844117 | EDIMAX EW-7478APC EW-7478APC 1.04 Buffer Overflow third-party-advisory
https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-formUSBAccount-34b53a41781f8077ad48e4c3af9be499 exploit