What is CVE-2026-2234?

CVE-2026-2234 is a critical-severity vulnerability in Hgiga C&cm@il Package Olln-base, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-02-09.

How severe is CVE-2026-2234?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Hgiga C&cm@il Package Olln-base

CVE-2026-2234

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

Vulnerability class: Broken Authentication

EPSS: 0.004 (35.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Hgiga C&cm@il Package Olln-base — versions 0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

twcert@cert.org.tw (third-party-advisory)
twcert@cert.org.tw (third-party-advisory)

Frequently asked questions

What is CVE-2026-2234?: CVE-2026-2234 is a critical-severity vulnerability in Hgiga C&cm@il Package Olln-base, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-02-09.
How severe is CVE-2026-2234?: Critical severity. CVSS v3 base score is 9.1 out of 10.