Detections
Analytics

Delta Electronics DIAView Hard-coded JWT Secret Key (CVE-2025-62581)

critical Nessus Plugin ID 297231

Synopsis

An OT web application uses a hard-coded JWT secret key.

Description

Delta Electronics DIAView WebHMI running on the remote host uses a hard-coded JWT secret key. An unauthenticated, remote attacker can exploit this, via a specially crafted message, to bypass authentication to perform protected operations.

Solution

Update to DIAView version 4.4.0 or later.

See Also

http://www.nessus.org/u?621d5dc2

Plugin Details

Severity: Critical

ID: 297231

File Name: delta_electronics_diaview_cve-2025-62581.nbin

Version: 1.2

Type: remote

Family: SCADA

Published: 1/30/2026

Updated: 2/3/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2025-62581

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: x-cpe:/a:deltaww:diaview

Required KB Items: installed_sw/Delta Electronics DIAView WebHMI

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 1/16/2026

Vulnerability Publication Date: 1/16/2026

Reference Information

CVE: CVE-2025-62581