CVE-2019-25566 TransMac 12.3 Denial of Service via Volume Name Field
Local attackers can crash TransMac by supplying an excessively long string to the volume name field during disk image creation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-25566?
CVE-2019-25566 is a medium-severity memory corruption vulnerability in Acutesystems TransMac, published on 21 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
TransMac 12.3 contains a buffer overflow vulnerability in the volume name field that allows local attackers to crash the application by supplying an excessively long string. Attackers can create a malicious file with 1000 repeated characters, paste the content into the volume name field during disk image creation, and trigger an application crash.
Weakness: CWE-787
Which versions are affected by CVE-2019-25566?
It affects 1 product.
Products include Acutesystems Transmac.
How do I fix CVE-2019-25566?
No fix has been published for CVE-2019-25566 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-25566 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25566 exists.
Sources
Also known as GHSA-67hr-84gv-hv8p.