CVE-2026-116842 Details
Description
DevilutionX 1.4.0 through 1.5.5 contains a heap buffer overflow vulnerability in the bundled libmpq libmpq__archive_dup routine when opening crafted MPQ archives. Attackers can supply an MPQ archive whose block table count exceeds its hash table count, causing memcpy to overflow the heap during startup and crash the game.
A heap buffer overflow vulnerability has been identified in DevilutionX versions 1.4.0 through 1.5.5. The issue arises in the bundled libmpq library, specifically within the libmpq__archive_dup function, when the game opens crafted MPQ archives. Attackers can exploit this vulnerability by supplying an MPQ archive with a block table count that exceeds the hash table count. This discrepancy causes a heap overflow during the game's startup process, leading to a crash.
Users can upgrade to DevilutionX version 1.5.6 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 27, 2026CISA-ADP
Assessed Oct 31, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| DevilutionX | >= 1.4.0, <= 1.5.5 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 31, 2026 | CVE Modified | CISA-ADP |
| Oct 27, 2026 | New CVE Received | [email protected] |