CVE-2026-9443Edimax BR-6478AC POST Request formL2TPSetup buffer overflow
Updated under an hour ago ()
This data is behind schedule: last updated Oct 26, 2026, 6:40 AM ET. We are working on it.Behind: CVE records (cvelistV5).
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It affects Edimax BR-6478AC. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A security vulnerability has been detected in Edimax BR-6478AC 1.23. This vulnerability affects the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. The manipulation of the argument L2TPUserName leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-120, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- May 26, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Edimax BR-6478AC edimax:br-6478ac_firmware | 1.23 | CNA record |
References
- https://vuldb.com/vuln/365424vdb-entry, technical-description
- https://vuldb.com/vuln/365424/ctisignature, permissions-required
- https://vuldb.com/submit/818452third-party-advisory
- https://lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-formL2TPSetup-34b53a41781f809e9c30c1260cc5d92e?source=copy_linkexploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.