CVE-2026-22319
Stack-Based Buffer Overflow in Device Installer Causes DoS
Publication date: 2026-03-18
Last updated on: 2026-03-18
Assigner: CERT VDE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| phoenix_contact | fl_switch | to 3.53 (exc) |
| phoenix_contact | fl_switch | 3.53 |
Helpful Resources
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 is a stack-based buffer overflow that occurs in the device's file installation workflow. It allows a high-privileged attacker to send oversized POST parameters which overflow a fixed-size stack buffer within an internal process.
The overflow can cause a denial of service (DoS) attack by disrupting the normal operation of the device.
How can this vulnerability impact me? :
The primary impact of this vulnerability is a denial of service (DoS) attack, which can cause the affected device or system to become unavailable or unresponsive.
Since the vulnerability requires a high-privileged attacker and does not affect confidentiality or integrity, the impact is limited to availability.
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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