CVE-2009-20004

gAlan 0.2.1, a modular audio processing environment for Windows, is vulnerable to a stack-based buffer overflow when parsing .galan files. The application fails to properly validate the length of input data, allowing a specially crafted file to overwrite the stack and execute arbitrary code. Exploitation requires local interaction, typically by convincing a user to open the malicious file.

CVSS v4.0

8.4 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS

0.34% chance of exploitation in the next 30 days, 27th percentile

Published

2025-08-21

Updated

2026-05-15

Proof-of-concept exploits (3)

• https://www.exploit-db.com/exploits/10339
• https://www.exploit-db.com/exploits/10345
• https://www.exploit-db.com/exploits/16664

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/windows/fileformat/galan_filefor…

References

• CVE Record
• NVD entry

Related

• CVE-2009-20003
• CVE-2009-20005
• CVE-2009-20002
• CVE-2009-20006
• CVE-2009-1979
• CVE-2009-20007