Description
A stack-based buffer overflow in the device's Telnet/SSH CLI login routine occurs when a unauthenticated attacker send an oversized or unexpected username input. An overflow condition crashes the thread handling the login attempt, forcing the session to close. Because other CLI sessions remain unaffected, the impact is limited to a low‑severity availability disruption.
INFO
Published Date :
2026-03-18T07:34:36.289Z
Last Modified :
2026-03-18T13:32:24.892Z
Source :
CERTVDE
AFFECTED PRODUCTS
The following products are affected by CVE-2026-22321 vulnerability.
| Vendors | Products |
|---|---|
| Phoenixcontact |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-22321.
| URL | Resource |
|---|---|
| https://certvde.com/de/advisories/VDE-2025-104 |
|
CVSS Vulnerability Scoring System
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact