CVE-2026-2234

HGiga｜C&Cm@il - Missing Authentication

Published: Feb 9, 2026Updated: Feb 9, 2026 Sources: CVE List NVDCWE-306

NVD MITRE

9.1CVSSCRITICAL

Description

C&Cm@il developed by HGiga has a Missing Authentication vulnerability, allowing unauthenticated remote attackers to read and modify any user's mail content.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:NAvailability

None

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Weaknesses

CWE-306

Affected Products

C&Cm@il package olln-base HGiga

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques

Initial Access

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References

https://www.twcert.org.tw/en/cp-139-10704-d5aba-2.html

twcert.org.tw

https://www.twcert.org.tw/tw/cp-132-10703-3d02f-1.html

twcert.org.tw

Timeline

Published

Feb 9, 2026

Last Updated

Feb 9, 2026

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