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High severity · published May 18, 2026
CVE-2026-8775
Edimax BR-6428NS POST Request formL2TPSetup buffer overflow
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
A flaw has been found in Edimax BR-6428NS 1.10. This affects the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. This manipulation of the argument L2TPUserName causes buffer overflow. It is possible to initiate the attack 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.
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)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BR
BR-6428NS · Edimax
1.10 · source: vendor
Affected product
BR
BR-6428NS
Edimax
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8775
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8775
lavender-bicycle-a5a.notion.site
https://lavender-bicycle-a5a.notion.site/EDIMAX-BR-6428NS-formL2TPSetup-34b53a41781f8046b38bffcc190c5277?source=copy_link
vuldb.com
https://vuldb.com/submit/811530
vuldb.com
https://vuldb.com/vuln/364400
vuldb.com
https://vuldb.com/vuln/364400/cti
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