CVE-2025-34124
Heroes of Might and Magic III .h3m Map File Buffer Overflow
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Heroes of Might and Magic III .h3m Map File Buffer Overflow
A buffer overflow vulnerability exists in Heroes of Might and Magic III Complete 4.0.0.0, HD Mod 3.808 build 9, and Demo 1.0.0.0 via malicious .h3m map files that exploit object sprite name parsing logic. The vulnerability occurs during in-game map loading when a crafted object name causes a buffer overflow, potentially allowing arbitrary code execution. Exploitation requires the victim to open a malicious map file within the game.
Reserved 2025-04-15 | Published 2025-07-16 | Updated 2025-07-16 | Assigner VulnCheckCWE-121 Stack-based Buffer Overflow
CWE-20 Improper Input Validation
CWE-94 Improper Control of Generation of Code ('Code Injection')
Pierre Lindblad
John AAkerblo
raw.githubusercontent.com/...windows/fileformat/homm3_h3m.rb
www.exploit-db.com/exploits/37716
www.vulncheck.com/...-and-magic-iii-map-file-buffer-overflow
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