CVE-2026-3631 - Vulnerability Details - OpenCVE

Delta Electronics COMMGR2 has

Buffer Over-read DoS vulnerability.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0004.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

DeltaWW

COMMGR2

unaffected

Version	Status	Constraints
`0`	affected	≤ 2.11.0

No data.

No data.

No data.

Project Subscriptions

Vendors	Products
Deltaww Subscribe	Commgr2 Subscribe

Advisories

No advisories yet.

Fixes

Solution

Please download and upgrade COMMGR2 to v2.11.1 or later.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00005_COMMGR%202%20Multiple%20Vulnerabilities%20(CVE-2026-3630,%20CVE-2026-3631).pdf

History

Mon, 09 Mar 2026 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 09 Mar 2026 03:30:00 +0000

Type	Values Removed	Values Added
Description		Delta Electronics COMMGR2 has Buffer Over-read DoS vulnerability.
Title		Buffer Over-read DoS Vulnerability in COMMGR2
First Time appeared		Deltaww Deltaww commgr2
Weaknesses		CWE-125
CPEs		cpe:2.3:a:deltaww:commgr2:::windows:::::*
Vendors & Products		Deltaww Deltaww commgr2
References		https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00005_COMMGR%202%20Multiple%20Vulnerabilities%20(CVE-2026-3630,%20CVE-2026-3631).pdf
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Deltaww

Published: 2026-03-09T02:56:06.391Z

Updated: 2026-03-09T18:27:33.129Z

Reserved: 2026-03-06T06:46:15.699Z

Link: CVE-2026-3631

Vulnrichment

Updated: 2026-03-09T18:27:29.571Z

NVD

Status : Awaiting Analysis

Published: 2026-03-09T04:15:58.630

Modified: 2026-03-09T13:35:07.393

Link: CVE-2026-3631

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-125

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