Vulnerabilidades do Phoenix Contact FL SWITCH TSN 2316

CVE-2026-22323 Alta · 7.1 CWE-352 18/03/2026

Cross‑Site Request Forgery in Link Aggregation Configuration

A CSRF vulnerability in the Link Aggregation configuration interface allows an unauthenticated remote attacker to trick authenticated users into sending unauthorized POST requests to the device by luring them to a malicious webpage. This can silently alter the device’s configuration without the victim’s knowledge or consent. Availability impact was set to low because after a successful attack the device will automatically recover without external intervention.

CVE-2026-22322 Alta · 7.1 CWE-79 18/03/2026

Stored Cross‑Site Scripting in Link Aggregation Name Handling

A stored cross‑site scripting (XSS) vulnerability in the Link Aggregation configuration interface allows an unauthenticated remote attacker to create a trunk entry containing malicious HTML/JavaScript code. When the affected page is viewed, the injected script executes in the context of the victim’s browser, enabling unauthorized actions such as interface manipulation. The session cookie is secured by the httpOnly Flag. Therefore an attacker is not able to take over the session of an authenticated user.

CVE-2026-22321 Média · 5.3 CWE-121 18/03/2026

Stack-Based Buffer Overflow in CLI Login Username Handling over CLI

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.

CVE-2026-22320 Média · 6.5 CWE-121 18/03/2026

Stack-Based Buffer Overflow in TFTP File-Transfer Command Handling over CLI

A stack-based buffer overflow in the CLI's TFTP file‑transfer command handling allows a low-privileged attacker with Telnet/SSH access to trigger memory corruption by supplying unexpected or oversized filename input. Exploitation results in the corruption of the internal buffer, causing the CLI and web dashboard to become unavailable and leading to a denial of service.

CVE-2026-22319 Média · 4.9 CWE-121 18/03/2026

Stack-Based Buffer Overflow in File Install Parameter Handling

A stack-based buffer overflow in the device's file installation workflow allows a high-privileged attacker to send oversized POST parameters that overflow a fixed-size stack buffer within an internal process, resulting in a DoS attack.

CVE-2026-22318 Média · 4.9 CWE-121 18/03/2026

Stack-Based Buffer Overflow in File Transfer Parameter Handling

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.

CVE-2026-22317 Alta · 7.2 CWE-77 18/03/2026

Command Injection Vulnerability in Root CA Certificate Transfer Workflow

A command injection vulnerability in the device’s Root CA certificate transfer workflow allows a high-privileged attacker to send crafted HTTP POST requests that result in arbitrary command execution on the underlying Linux OS with root privileges.

CVE-2026-22316 Média · 6.5 CWE-121 18/03/2026

Buffer Overflow using TFTP Filename

A remote attacker with user privileges for the webUI can use the setting of the TFTP Filename with a POST Request to trigger a stack-based Buffer Overflow, resulting in a DoS attack.