Critical10
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

PT-2025-68: Stack-based buffer overflow during HTTP boundary-content parsing in LCD KVM over IP switch CL5708IM

Error type:

  • CWE-121:Stack-based Buffer Overflow

Vulnerability vector:

  • Base vulnerability score (CVSSv4.0): CVSS:4.0/ AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  • Severity (CVSSv4.0): 10 (Critical)

Description:

The vulnerability was identified in LCD KVM over IP switch CL5708IM firmware version <v2.2.215.

The discovered vulnerability allows an attacker to achieve remote code execution or a denial‑of‑service condition. It is triggered by a stack‑based buffer overflow when parsing multipart boundary tags, enabling unauthenticated remote attacker to overwrite stack memory and gain arbitrary code execution.

Vulnerability status: Confirmed by vendor

Date of vulnerability remediation: 26.02.2025

Recommendations:

  • Update to version v2.2.215 or higher

Additional information: Security advisory, Press release

Researcher: Nataliya Tlyapova, Denis Goryushev (Positive Technologies)

Identifiers:

CVE-2025-3710

BDU:2025-01795

Vendor:

ATEN INTERNATIONAL Co., Ltd.

Vulnerable product:

LCD KVM over IP switch CL5708IM

Vulnerable versions:

firmware version < v2.2.215