Medium severity · published Oct 27, 2026
CVE-2026-116841
DevilutionX 1.4.0 through 1.5.5 Out-of-Bounds Read via libmpq Hash Table Lookup
New
5.5
CVSS
0.1%
EPSS
No
On KEV
Description
DevilutionX 1.4.0 through 1.5.5 contains an out-of-bounds read vulnerability in the bundled libmpq libmpq__file_number_from_hash function that allows attackers to read heap memory via unchecked block_table_index values. Attackers can place a crafted .mpq archive in the game's data path, such as a mod, to trigger reads past mpq_map and crash the game.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DE
DevilutionX · diasurgical
1.4.0 through 1.5.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116841
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116841
github.com
https://github.com/diasurgical/DevilutionX/blob/7223eeac9e8274fbf665b4de86fda26d3b22c52f/3rdParty/libmpq/CMakeLists.txt
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#L740
hackmd.io
https://hackmd.io/@haindpwn/devilutionx-libmpq-hash-block-table-oob
www.vulncheck.com
https://www.vulncheck.com/advisories/devilutionx-1.4.0-through-1.5.5-out-of-bounds-read-via-libmpq-hash-table-lookup
More from DevilutionX
6.1
CVE-2026-116842
DevilutionX 1.4.0 through 1.5.5 Heap Buffer Overflow via libmpq__archive_dup