CVE-2026-22316
Stack-Based Buffer Overflow in WebUI TFTP Filename Causes DoS
Publication date: 2026-03-18
Last updated on: 2026-03-18
Assigner: CERT VDE
Description
Description
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Affected Vendors & Products
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Exploitability
| CWE ID | Description |
|---|---|
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability allows a remote attacker who already has user privileges for the web user interface (webUI) to exploit a stack-based buffer overflow by setting the TFTP Filename via a POST request.
By sending a specially crafted POST request to set the TFTP Filename, the attacker can trigger this buffer overflow.
This results in a denial of service (DoS) attack, causing the affected system or service to crash or become unavailable.
How can this vulnerability impact me? :
The primary impact of this vulnerability is a denial of service (DoS) condition.
An attacker with user privileges on the webUI can cause the affected system or service to crash or become unavailable by exploiting the buffer overflow.
This can disrupt normal operations and potentially cause downtime until the system is restored.
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?
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What immediate steps should I take to mitigate this vulnerability?
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