CVE-2026-24110
Buffer Overflow in Tenda W20E DHCP Rule Processing
Publication date: 2026-03-02
Last updated on: 2026-03-03
Assigner: MITRE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | w20e_firmware | 15.11.0.6 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-120 | The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Tenda W20E V4.0br_V15.11.0.6 device. Attackers can send overly long data to the addDhcpRules function. When this data is processed by the addDhcpRule function using the sscanf function, there is no validation on the size of the input. This lack of size validation can cause buffer overflows in the variables dhcpsIndex, dhcpsIP, and dhcpsMac.
How can this vulnerability impact me? :
The buffer overflow caused by this vulnerability can potentially allow attackers to execute arbitrary code, crash the device, or cause denial of service. This can lead to unauthorized access or disruption of network services provided by the affected device.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know