CVE-2026-3631

Buffer Over-read DoS Vulnerability in COMMGR2

HIGH

7.5

CVSS Score

Published: March 9, 2026 at 02:56 AM UTC

Updated: June 17, 2026 at 10:43 AM UTC

2 products affected across 1 vendorCOMMGR2Commgr

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Severity

HIGH7.5

Exploit prediction

EPSS 0.9%

SSVC

No known exploit

Description

Delta Electronics COMMGR2 has Buffer Over-read DoS vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

COMMGR2 · Deltaww

95%

v < 2.11.1

Commgr · Deltaww

60%

v ≤ 2.11.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

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

References (1)

Vendor Advisory

Source: cverecord

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

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHDeltaww

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-125

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