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High severity · published May 18, 2026
CVE-2026-8776
Edimax BR-6428NS POST Request formPPTPSetup buffer overflow
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability has been found in Edimax BR-6428NS 1.10. This vulnerability affects the function formPPTPSetup of the file /goform/formPPTPSetup of the component POST Request Handler. Such manipulation of the argument pptpUserName leads to 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)0.4% · higher than 39% 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-2026-8776
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8776
lavender-bicycle-a5a.notion.site
https://lavender-bicycle-a5a.notion.site/EDIMAX-BR-6428NS-formPPTPSetup-34b53a41781f8074a88af068842b599e?source=copy_link
vuldb.com
https://vuldb.com/submit/811531
vuldb.com
https://vuldb.com/vuln/364401
vuldb.com
https://vuldb.com/vuln/364401/cti
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