Actively exploited · Published Apr 18, 2025 · Assigned by jpcert
CVE-2025-42599
Critical 9.8 Exploited
In plain English
A critical-severity stack buffer overflow in Active! mail 6 from QUALITIA CO., LTD.. Attackers are actively exploiting it in the wild (listed by CISA on April 28, 2025). The chance it is exploited in the next 30 days is estimated at 3.4% (higher than 89% of all known vulnerabilities). Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by May 19, 2025.
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| QUALITIA CO., LTD. | Active! mail 6 | BuildInfo: 6.60.05008561 and earlier |
Weakness: CWE-121 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H