ABB M2M Gateway Out-Of-Bound Memory Read/Write in embedded Libssh2 (CVE-2020-22218)

high Tenable OT Security Plugin ID 503235

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: High

ID: 503235

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 5/27/2025

Updated: 5/27/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/o:abb:sw_firmware, cpe:/o:abb:arm600_firmware

Required KB Items: Tenable.ot/ABB

Exploit Ease: No known exploits are available

Patch Publication Date: 8/22/2023

Vulnerability Publication Date: 8/22/2023

Reference Information

CVE: CVE-2020-22218

CWE: 787

ICSA: 25-105-08

Detections

Analytics