# CVE-2025-42599

## Summary

- **CVE ID:** CVE-2025-42599
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-121
- **Published:** Apr 18, 2025
- **Last Modified:** Feb 26, 2026

## Description

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 Products

- QUALITIA CO., LTD. — Active! mail 6 (BuildInfo: 6.60.05008561 and earlier)

## References

- [CNA](https://www.qualitia.com/jp/news/2025/04/18_1030.html)
- [CNA](https://jvn.jp/en/jp/JVN22348866/)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-42599)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 3.19%
- **EPSS Percentile:** 87.3

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** Apr 28, 2025
- **Due Date:** May 19, 2025

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._