CVE-2025-34124
HIGH EPSS 29.9%
Published Jul 16, 202511mo ago · Modified Jun 17, 20262w ago
8.4 CVSS 4.0
Published Jul 16, 2025 11mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/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 Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X
Threat Intelligence
EPSS Exploit Probability
29.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 3
CWE-121
CWE-20 Improper Input Validation Validation
CWE-94 Improper Control of Generation of Code (Code Injection) Injection
References 3
- raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/homm3_h3m.rb
- exploit-db.com https://www.exploit-db.com/exploits/37716
- vulncheck.com https://www.vulncheck.com/advisories/heroes-of-might-and-magic-iii-map-file-buffer-overflow
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.