Edimax EW-7478APC POST Request formL2TPSetup stack-based overflow
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
A vulnerability has been found in Edimax EW-7478APC 1.04. This impacts the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. Such manipulation of the argument L2TPUserName leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-13563
- 2026-10-03 Alias added: GHSA-2fx5-835p-hm49
References
More Edimax vulnerabilities
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- TI-2026-71231 Command injection in Edimax BR-6208AC via formWlanMP CVSS 4.0CRITICAL 10.0
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- TI-2025-28873 EDIMAX CV7428NS v1.20 was discovered to contain a remote code execution (RCE)… CVSS 3.1CRITICAL 9.8
- TI-2025-20734 Edimax AC1200 Wave 2 Dual-Band Gigabit Router BR-6478AC V3 1.0.15 was discovered to… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-13563 · CVE Program
- CVE-2026-13563 · NVD
- FIRST EPSS
- GHSA-2fx5-835p-hm49 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences