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.

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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
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