CVE-2025-34124
High
Description
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.
SeverityHigh
CVSS8.4
Exploit probability—
ProductHeroes of Might and Magic III
PublishedJul 16, 2025
First seenJul 16, 2025
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| The 3DO Company Heroes of Might and Magic III | Complete 4.0.0.0, HD Mod 3.808 build 9, Demo 1.0.0.0 | — |
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