Heroes of Might and Magic III .h3m Map File Buffer Overflow
36Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 8.4epss 0.4%
from disclosure to weapon0 days
Published on NVDJul 16
metasploitJul 29
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
The 3DO Company · Heroes of Might and Magic III