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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.

PUBLISHED Reserved 2026-03-21 | Published 2026-03-21 | Updated 2026-03-23 | Assigner VulnCheck




MEDIUM: 6.9CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
MEDIUM: 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Out-of-bounds Write

Product status

12.3
affected

Credits

Alejandra Sánchez finder

References

www.exploit-db.com/exploits/46470 (ExploitDB-46470) exploit

www.acutesystems.com/ (Official Product Homepage) product

www.acutesystems.com/tmac/tmsetup.exe (Product Reference) product

www.vulncheck.com/...denial-of-service-via-volume-name-field (VulnCheck Advisory: TransMac 12.3 Denial of Service via Volume Name Field) third-party-advisory

cve.org (CVE-2019-25566)

nvd.nist.gov (CVE-2019-25566)

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