CVE-2025-42599 Qualitia Active! Mail Stack-Based Buffer Overflow
Remote unauthenticated attackers can trigger a stack-based buffer overflow in Active! mail 6, leading to arbitrary code execution or denial of service.
- Exploited in the wild
- Since 28 Apr 2025
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-42599?
CVE-2025-42599 is a critical memory corruption vulnerability in QUALITIA CO., LTD. Active! mail 6, published on 18 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-121
Which versions are affected by CVE-2025-42599?
It affects 1 product.
Products include Qualitia Active\! Mail.
How do I fix CVE-2025-42599?
No fix has been published for CVE-2025-42599 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 19 May 2025.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-42599 being exploited?
Yes. Attackers have exploited CVE-2025-42599 in the wild since at least 28 Apr 2025.
Sources
Also known as GHSA-wvvm-3j2m-8rj3.