PT-2026-40577 · Canon Marketing Japan · Guardianwall Mail Security Cloud+1

Published

2026-05-13

·

Updated

2026-05-13

·

CVE-2026-32661

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Stack-based buffer overflow vulnerability exists in GUARDIANWALL MailSuite and GUARDIANWALL Mail Security Cloud (SaaS version). If a remote attacker sends a specially crafted request to the product's web service, arbitrary code may be executed when the product is configured to run pop3wallpasswd with grdnwww user privilege.

Fix

Stack Overflow

Weakness Enumeration

Related Identifiers

CVE-2026-32661

Affected Products

Guardianwall Mail Security Cloud
Guardianwall Mailsuite