Memory corruption via unchecked USB account copy
Published May 31, 2026 · Updated May 31, 2026
Buffer overflow in Edimax BR-6478AC 1.23 allows remote authenticated users to corrupt memory through a crafted USB-account POST request. The formUSBAccount handler passes attacker-controlled UserName or Password data to strcpy without checking the destination buffer's size. Low-privileged access to the management endpoint is required; the public proof of concept sends a 5,000-byte Password value but does not demonstrate code execution.
Summary
What happened
Buffer overflow in Edimax BR-6478AC 1.23 allows remote authenticated users to corrupt memory through a crafted USB-account POST request. The formUSBAccount handler passes attacker-controlled UserName or Password data to strcpy without checking the destination buffer's size. Low-privileged access to the management endpoint is required; the public proof of concept sends a 5,000-byte Password value but does not demonstrate code execution.
The record
- CVE
- CVE-2026-10163
- Published
- May 31, 2026
- Updated
- May 31, 2026
- Vendor
- Edimax Technology Co., Ltd.
- Product
- BR-6478AC
- Classifications
- CWE-120, CWE-119, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 31, 2026CVE publishedPublication date reported by the CVE source.
- May 31, 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.
- Affected versionversion=1.23
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- EDIMAX-BR6478ACV2-formUSBAccount proof of conceptproof of concept · unverified
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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