CVE-2025-42599
Qualitia Active! Mail Stack-Based Buffer Overflow Vulnerability
CVSS
9.8
Critical
EPSS
3.3%
p88
KEV
YES
Apr 28, 2025
Exploit Today
77
0-100
Published: Apr 18, 2025 · Last modified: Sep 24, 2026 · CWE-121
Product
Qualitia / Active! Mail
Vulnerability
Qualitia Active! Mail Stack-Based Buffer Overflow Vulnerability
Added to KEV
Apr 28, 2025
Remediate by
May 19, 2025
Known ransomware use
No
Summary description
Qualitia Active! Mail contains a stack-based buffer overflow vulnerability that allows a remote, unauthenticated attacker to execute arbitrary or trigger a denial-of-service via a specially crafted request.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://www.qualitia.com/jp/news/2025/04/18_1030.html ; https://nvd.nist.gov/vuln/detail/CVE-2025-42599
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.