Remote command execution via unsanitized USB partition name
Published Mar 2, 2026 · Updated Mar 2, 2026
Command injection in Tenda W20E firmware 4.0br_V15.11.0.6 allows remote attackers to execute arbitrary system commands via usbPartitionName. The formSetUSBPartitionUmount handler passes the request's usbPartitionName value directly to doSystemCmd without validation, allowing shell metacharacters to alter the generated command. The published proof of concept performs an administrator login first, while CISA scores privileges as none; successful execution can modify files and fully compromise the router.
Summary
What happened
Command injection in Tenda W20E firmware 4.0br_V15.11.0.6 allows remote attackers to execute arbitrary system commands via usbPartitionName. The formSetUSBPartitionUmount handler passes the request's usbPartitionName value directly to doSystemCmd without validation, allowing shell metacharacters to alter the generated command. The published proof of concept performs an administrator login first, while CISA scores privileges as none; successful execution can modify files and fully compromise the router.
The record
- CVE
- CVE-2026-24107
- Published
- Mar 2, 2026
- Updated
- Mar 2, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-94, T1059
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 2, 2026CVE publishedPublication date reported by the CVE source.
- Mar 2, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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.
Weakness, pattern, technique
Public exploit references
- usbPartitionName command-injection proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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