Riskcovery

CVE-2026-32661

State
Published
Severity
9.3 Critical
Published
May 13, 2026
Updated
May 13, 2026
Reserved
May 11, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
4.09.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Njpcert
3.09.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hjpcert

Weaknesses

  • CWE-121 Stack-based buffer overflow

Affected Products

ProductVersions
GUARDIANWALL MailSuite (On-premises version)Canon Marketing Japan Inc.
  • Ver 1.4.00 to Ver 2.4.26Affected
GUARDIANWALL Mail Security Cloud (SaaS version)Canon Marketing Japan Inc.
  • versions before the maintenance on April 30Affected
  • 2026Affected

References

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