CVE-2026-22321

MEDIUM EPSS 28.5%

Published Mar 18, 20263mo ago · Modified Jun 17, 20261w ago

5.3 CVSS 3.1

Medium

Published Mar 18, 2026 3mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

5.3

Exploitability

3.9

Impact

1.4

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability Low

Threat Intelligence

EPSS Exploit Probability

28.5% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-121

References 1

certvde.com https://certvde.com/de/advisories/VDE-2025-104

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.