Authenticated command execution via unsanitized interface parameter
Published Jun 21, 2026 · Updated Jun 21, 2026
Command injection in the stainfo handler in Edimax BR-6478AC V2 1.23 allows remote authenticated users to execute operating-system commands. The /goform/stainfo POST handler copies the attacker-controlled interface parameter into a Var variable and supplies it to system(), allowing shell metacharacters to alter the command. Low-privileged access to the web interface is required, and injected commands run in the router firmware's operating-system context.
Summary
What happened
Command injection in the stainfo handler in Edimax BR-6478AC V2 1.23 allows remote authenticated users to execute operating-system commands. The /goform/stainfo POST handler copies the attacker-controlled interface parameter into a Var variable and supplies it to system(), allowing shell metacharacters to alter the command. Low-privileged access to the web interface is required, and injected commands run in the router firmware's operating-system context.
The record
- CVE
- CVE-2026-12808
- Published
- Jun 21, 2026
- Updated
- Jun 21, 2026
- Vendor
- Edimax Technology Co., Ltd.
- Product
- BR-6478AC V2
- Classifications
- CWE-77, CWE-74, T1059
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 21, 2026CVE publishedPublication date reported by the CVE source.
- Jun 21, 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?
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 stainfo proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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