Buffer Overflow Vulnerability in TransMac by Acute Systems
CVE-2019-25566

6.9MEDIUM

Key Information:

Vendor

Acutesystems

Status
Transmac
Vendor
CVE Published:
21 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-25566?

TransMac 12.3 is susceptible to a buffer overflow vulnerability within the volume name field, allowing local attackers to crash the application. By providing an excessively long string, such as a malicious file containing 1000 repeated characters, attackers can trigger the application to fail during the disk image creation process. This vulnerability presents a significant risk for users who may inadvertently create an unstable environment.

Affected Version(s)

TransMac 12.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2019-25566 - Proof of Concept

References

https://www.exploit-db.com/exploits/46470
exploit
https://www.acutesystems.com/
product
https://www.acutesystems.com/tmac/tmsetup.exe
product

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alejandra Sánchez
.