Remote denial of service via formexeCommand buffer overflow
Published Sep 23, 2022 · Updated May 22, 2025
Buffer overflow in Tenda i9 v1.0.0.8(3828) allows remote attackers to cause denial of service via crafted strings. The formexeCommand function writes crafted input beyond its buffer, creating an out-of-bounds write that can terminate the firmware service. The unauthenticated network path requires no user interaction and affects availability without reported data disclosure or modification.
Summary
What happened
Buffer overflow in Tenda i9 v1.0.0.8(3828) allows remote attackers to cause denial of service via crafted strings. The formexeCommand function writes crafted input beyond its buffer, creating an out-of-bounds write that can terminate the firmware service. The unauthenticated network path requires no user interaction and affects availability without reported data disclosure or modification.
The record
- CVE
- CVE-2022-40107
- Published
- Sep 23, 2022
- Updated
- May 22, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 23, 2022CVE publishedPublication date reported by the CVE source.
- May 22, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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
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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