Remote code execution in QUALITIA Active! mail



| Updated: 2025-04-23
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-42599
CWE-ID CWE-121
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
 Active! mail
Server applications / Conferencing, Collaboration and VoIP solutions

Vendor QUALITIA CO., LTD.

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Stack-based buffer overflow

EUVDB-ID: #VU107879

Risk: Critical

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2025-42599

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when handling requests. A remote unauthenticated attacker can send a specially crafted request to the server, trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Active! mail: before 6.60.06008562

CPE2.3 External links

https://jvn.jp/en/jp/JVN22348866/
https://www.qualitia.com/jp/news/2025/04/18_1030.html
https://www.jpcert.or.jp/at/2025/at250010.html
https://jvndb.jvn.jp/en/contents/2025/JVNDB-2025-000027.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.



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