Authenticated memory corruption via crafted cmdinput
Published Sep 2, 2025 · Updated Sep 2, 2025
A buffer overflow in the formexeCommand handler in Tenda CH22 1.0.0.1 allows remote authenticated users to corrupt process memory. The handler accepts a crafted cmdinput value and overflows its memory buffer, but the public record does not identify the copy operation or destination buffer. Valid low-privileged credentials and network access to /goform/exeCommand are required; observed exploitation and a specific post-corruption outcome are not documented.
Summary
What happened
A buffer overflow in the formexeCommand handler in Tenda CH22 1.0.0.1 allows remote authenticated users to corrupt process memory. The handler accepts a crafted cmdinput value and overflows its memory buffer, but the public record does not identify the copy operation or destination buffer. Valid low-privileged credentials and network access to /goform/exeCommand are required; observed exploitation and a specific post-corruption outcome are not documented.
The record
- CVE
- CVE-2025-9812
- Published
- Sep 2, 2025
- Updated
- Sep 2, 2025
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- CH22 Firmware
- Classifications
- CWE-120, CWE-119, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 2, 2025CVE publishedPublication date reported by the CVE source.
- Sep 2, 2025Record 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=1.0.0.1
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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