---
id: CVE-2025-42599
title: >-
  Active! mail 6 BuildInfo: 6.60.05008561 and earlier contains a stack-based
  buffer overflow vulnerability
summary: >-
  Active! mail 6 BuildInfo: 6.60.05008561 and earlier contains a stack-based
  buffer overflow vulnerability. Receiving a specially crafted request created
  and sent by a remote unauthenticated attacker may lead to arbitrary code
  execution an…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-121
vendor: qualitia
product: active!_mail
affected:
  - active!_mail < 6.60.05008562
patched:
  - active!_mail 6.60.05008562
published: '2025-04-18'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T13:10:00.320'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-42599'
references:
  - url: 'https://jvn.jp/en/jp/JVN22348866/'
    label: vultures@jpcert.or.jp
  - url: 'https://www.qualitia.com/jp/news/2025/04/18_1030.html'
    label: vultures@jpcert.or.jp
  - url: >-
      https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-42599
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - kev
  - in-the-wild
epss: 0.03298
epssPercentile: 0.88025
kev: true
kevDateAdded: '2025-04-28'
kevDueDate: '2025-05-19'
kevRansomware: false
exploited: true
ingestedAt: '2026-09-24T13:43:25.656Z'
---

## Overview

Active! mail 6 BuildInfo: 6.60.05008561 and earlier contains a stack-based buffer overflow vulnerability. Receiving a specially crafted request created and sent by a remote unauthenticated attacker may lead to arbitrary code execution and/or a denial-of-service (DoS) condition.

## Affected

- `active!_mail < 6.60.05008562`

## Remediation

Upgrade past the affected range:

- `active!_mail 6.60.05008562`