CVE-2026-7685Public exploitNetwork attack vector

Authenticated memory corruption via oversized pptpDfGateway

Published May 3, 2026 · Updated May 3, 2026

Stack-based buffer overflow in Edimax BR-6208AC firmware 1.02 allows remote authenticated users to corrupt memory via a crafted WAN request. The /goform/setWAN handler processes an oversized pptpDfGateway value without enforcing the destination buffer bounds, causing a stack overflow. The published assessment requires low-privilege authentication; its public exploit reference names BR-6428nC rather than BR-6208AC, leaving cross-model reproduction unverified.

CVSS severity8.8
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Edimax BR-6208AC firmware 1.02 allows remote authenticated users to corrupt memory via a crafted WAN request. The /goform/setWAN handler processes an oversized pptpDfGateway value without enforcing the destination buffer bounds, causing a stack overflow. The published assessment requires low-privilege authentication; its public exploit reference names BR-6428nC rather than BR-6208AC, leaving cross-model reproduction unverified.

The record

CVE
CVE-2026-7685
Published
May 3, 2026
Updated
May 3, 2026
Vendor
Edimax Technology Co., Ltd.
Product
BR-6208AC
Classifications
CWE-120, CWE-119, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 3, 2026CVE publishedPublication date reported by the CVE source.
  2. May 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.02

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Edimax Technology Co., Ltd. · BR-6208ACversion=1.02

Published CVSS scores

7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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