CVE-2026-116842
DevilutionX 1.4.0 through 1.5.5 Heap Buffer Overflow via libmpq__archive_dup
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 |
| Vendor | diasurgical |
| Product | devilutionx |
| Published | Oct 27, 2026 |
Stay Ahead of the Next One
Get instant alerts for diasurgical devilutionx
Be the first to know when new medium vulnerabilities affecting diasurgical devilutionx are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
diasurgical / DevilutionX
1.4.0 ≤ 1.5.5
References
github.com: https://github.com/diasurgical/DevilutionX/issues/8758 github.com: https://github.com/diasurgical/DevilutionX/pull/8482 github.com: https://github.com/diasurgical/libmpq/blob/b78d66c6fee6a501cc9b95d8556a129c68841b05/libmpq/mpq.c#L505 github.com: https://github.com/diasurgical/DevilutionX/blob/7223eeac9e8274fbf665b4de86fda26d3b22c52f/3rdParty/libmpq/CMakeLists.txt hackmd.io: https://hackmd.io/@haindpwn/devilutionx-libmpq-hash-block-table-oob vulncheck.com: https://www.vulncheck.com/advisories/devilutionx-1.4.0-through-1.5.5-heap-buffer-overflow-via-libmpq-archive-dup
Credits
HaiND from the Post and Telecommunication Institute of Technology