CVE-2026-32661
Guardianwall Mailsuite Remote Code Execution Vulnerability
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.
INFO
Published Date :
May 13, 2026, 5:15 a.m.
Last Modified :
May 13, 2026, 5:15 a.m.
Remotely Exploit :
No
Source :
jpcert
Affected Products
The following products are affected by CVE-2026-32661
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.0 | CRITICAL | ede6fdc4-6654-4307-a26d-3331c018e2ce | ||||
| CVSS 4.0 | CRITICAL | ede6fdc4-6654-4307-a26d-3331c018e2ce |
Solution
- Update GUARDIANWALL MailSuite and Mail Security Cloud.
- Review pop3wallpasswd configuration for pop3wallpasswd.
- Apply vendor patches when available.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-32661 vulnerability anywhere in the article.