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CVE-2026-3631

26
FAUCET Score

CVE-2026-3631 is a Buffer Over-read Denial of Service (DoS) vulnerability impacting Delta Electronics COMMGR2. Rated 7.5 HIGH on the CVSS scale, it can be exploited remotely with low attack complexity, leading to a complete loss of availability for affected systems. There is currently no evidence of active exploitation, nor are public exploit codes available in common repositories. Community discussion and media coverage for this specific CVE are minimal, indicating low public attention at this time.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.11.1CPE matchmatch criteria
cpe:2.3:a:deltaww:commgr2:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.90%
Probability of exploitation in next 30 days
EPSS Percentile
55.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0090 is in the 31st percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (6)

3cxvendor investigatingvia llm_extracted
burp_suitevendor investigatingvia llm_extracted
entrustvendor investigatingvia llm_extracted
moxavendor investigatingvia llm_extracted
proxmoxvendor investigatingvia llm_extracted
qwikvendor investigatingvia llm_extracted

Vendor Advisories (6)

proxmoxllm-proxmox-2f6e968fd0ff45fcCRITICAL

Delta Electronics COMMGR Multiple Vulnerabilities

Mar 17, 2026
moxallm-moxa-cc8f56fa837e4618CRITICAL

Delta Electronics COMMGR Multiple Vulnerabilities

Mar 17, 2026
entrustllm-entrust-73f71f4a0b5624f9CRITICAL

Delta Electronics COMMGR Multiple Vulnerabilities

Mar 17, 2026
3cxllm-3cx-8f9304751b508116CRITICAL

Delta Electronics COMMGR Multiple Vulnerabilities

Mar 17, 2026
burp_suitellm-burp_suite-2c34555b553a2fe1CRITICAL

Delta Electronics COMMGR Multiple Vulnerabilities

Mar 17, 2026
qwikllm-qwik-9b4e13784499508aCRITICAL

Delta Electronics COMMGR Multiple Vulnerabilities

Mar 17, 2026

References

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