Authenticated memory corruption via unchecked selSSID length
Published May 30, 2026 · Updated May 30, 2026
Buffer overflow in the formQoS POST handler in Edimax BR-6478AC 1.23 allows remote authenticated users to corrupt device memory. The handler processes the selSSID argument at /goform/formQoS without enforcing the destination buffer boundary. Valid router credentials are required; the record confirms memory corruption but does not disclose whether the proof of concept causes a crash or code execution.
Summary
What happened
Buffer overflow in the formQoS POST handler in Edimax BR-6478AC 1.23 allows remote authenticated users to corrupt device memory. The handler processes the selSSID argument at /goform/formQoS without enforcing the destination buffer boundary. Valid router credentials are required; the record confirms memory corruption but does not disclose whether the proof of concept causes a crash or code execution.
The record
- CVE
- CVE-2026-10126
- Published
- May 30, 2026
- Updated
- May 30, 2026
- Vendor
- Edimax Technology Co., Ltd.
- Product
- BR-6478AC
- Classifications
- CWE-119, CWE-120
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 30, 2026CVE publishedPublication date reported by the CVE source.
- May 30, 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?
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- Affected versionversion=1.23
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- EDIMAX BR6478ACV2 formQoS proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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