ABB REB500 Privilege Defined With Unsafe Actions (CVE-2026-2460)

high Tenable OT Security Plugin ID 505203

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability exists in REB500 for an authenticated user with low-level privileges to access and alter the contents of directories that the role is not authorized to do so.

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: 505203

File Name: tenable_ot_abb_CVE-2026-2460.nasl

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 3/2/2026

Updated: 3/2/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:N

CVSS Score Source: CVE-2026-2460

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.4

Threat Score: 4.5

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:hitachienergy:reb500_firmware

Required KB Items: Tenable.ot/ABB

Exploit Ease: No known exploits are available

Patch Publication Date: 2/24/2026

Vulnerability Publication Date: 2/24/2026

Reference Information

CVE: CVE-2026-2460

CWE: 267

Detections

Analytics