High severity · published Jun 29, 2026
CVE-2026-13563
Edimax EW-7478APC POST Request formL2TPSetup stack-based overflow
8.8
CVSS
0.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EW
EW-7478APC · Edimax
1.04 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13563
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13563
lavender-bicycle-a5a.notion.site
https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-formL2TPSetup-34b53a41781f80f295f8ca2aa55e1226?pvs=73
vuldb.com
https://vuldb.com/cve/CVE-2026-13563
vuldb.com
https://vuldb.com/submit/844113
vuldb.com
https://vuldb.com/vuln/374571
vuldb.com
https://vuldb.com/vuln/374571/cti
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