What is CVE-2026-6351?

CVE-2026-6351 is a high-severity vulnerability in Openfind Mailaudit, classified under CRLF Injection. CVSS score: 7.5/10. Published 2026-04-16.

How severe is CVE-2026-6351?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Openfind Mailaudit

CVE-2026-6351

MailGates/MailAudit developed by Openfind has a CRLF Injection vulnerability, allowing unauthenticated remote attackers to exploit this vulnerability to read system files.

Vulnerability class: CRLF Injection

EPSS: 0.000 (9.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Openfind Mailaudit — versions 6.0, 5.0
Openfind Mailgates — versions 6.0, 5.0

Weakness classification (CWE)

CWE-93 — CRLF Injection

References

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

Frequently asked questions

What is CVE-2026-6351?: CVE-2026-6351 is a high-severity vulnerability in Openfind Mailaudit, classified under CRLF Injection. CVSS score: 7.5/10. Published 2026-04-16.
How severe is CVE-2026-6351?: High severity. CVSS v3 base score is 7.5 out of 10.