Authenticated command execution via unvalidated password parameter
Published Jun 21, 2026 · Updated Jun 21, 2026
Command injection in Edimax BR-6478AC V2 1.23 allows remote authenticated users to execute shell commands through a crafted POST request. The wiz_5in1_redirect handler passes the POST-controlled newpass variable to system() without restricting shell metacharacters. Valid credentials and network access to the management interface are required, and command effects remain confined to the router.
Summary
What happened
Command injection in Edimax BR-6478AC V2 1.23 allows remote authenticated users to execute shell commands through a crafted POST request. The wiz_5in1_redirect handler passes the POST-controlled newpass variable to system() without restricting shell metacharacters. Valid credentials and network access to the management interface are required, and command effects remain confined to the router.
The record
- CVE
- CVE-2026-12809
- Published
- Jun 21, 2026
- Updated
- Jun 21, 2026
- Vendor
- Edimax Technology Co., Ltd.
- Product
- BR-6478AC V2
- Classifications
- CWE-74, CWE-77, T1059.004
- 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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- EDIMAX BR6478ACV2 wiz_5in1_redirect proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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