Detections
Analytics

Delta Electronics COMMGR Stack-based Buffer Overflow (CVE-2026-3630)

critical Nessus Plugin ID 304404

Synopsis

An OT application is affected by a stack-based buffer overflow vulnerability.

Description

The Delta Electronics COMMGR running on the remote host is affected by a stack-based buffer overflow vulnerability. An unauthenticated, remote attacker could exploit this, via a specially crafted message, to execute arbitrary code.

Solution

Update COMMGR to v2.11.1 or later.

See Also

http://www.nessus.org/u?bdad9e24

Plugin Details

Severity: Critical

ID: 304404

File Name: delta_electronics_commgr_cve-2026-3630.nbin

Version: 1.2

Type: remote

Family: SCADA

Published: 3/31/2026

Updated: 4/1/2026

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-2026-3630

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: cpe:/a:deltaww:commgr

Required KB Items: installed_sw/Delta Electronics COMMGR

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 3/6/2026

Vulnerability Publication Date: 3/6/2026

Reference Information

CVE: CVE-2026-3630