CVE-2026-22318
Received Received - Intake

Stack-Based Buffer Overflow in File Transfer Causes DoS

Vulnerability report for CVE-2026-22318, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-03-18

Last updated on: 2026-03-18

Assigner: CERT VDE

Description

A stack-based buffer overflow vulnerability in the device's file transfer parameter workflow allows a high-privileged attacker to send oversized POST parameters, causing memory corruption in an internal process, resulting in a DoS attack.

CVSS Scores

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Meta Information

Published
2026-03-18
Last Modified
2026-03-18
Generated
2026-07-07
AI Q&A
2026-03-18
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
phoenix_contact fl_switch to 3.53 (exc)
phoenix_contact fl_switch 3.53

Helpful Resources

Exploitability

CWE
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KEV
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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

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Executive Summary

This vulnerability is a stack-based buffer overflow in the device's file transfer parameter workflow. It allows a high-privileged attacker to send oversized POST parameters, which causes memory corruption in an internal process.

The memory corruption can lead to a denial-of-service (DoS) attack, disrupting the normal operation of the device.

Impact Analysis

The primary impact of this vulnerability is that an attacker with high privileges can cause a denial-of-service (DoS) condition by exploiting the buffer overflow.

This means the affected device or service could become unavailable or crash, potentially disrupting business operations or critical functions.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

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