High severity · published Oct 6, 2026
CVE-2026-105839
libmikmod before 3.3.14 Heap Buffer Overflow via OKT Loader OKT_doPBOD
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
libmikmod before 3.3.14 contains an integer overflow in the Oktalyzer loader OKT_doPBOD() that allows attackers to cause heap buffer overflow via crafted track counts. Attackers can supply an OKT module whose SLEN chunk wraps the 16-bit numtrk value, causing PBOD writes past allocated track pointers for crashes or code execution.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
libmikmod · sezero
before 3.3.14 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105839
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105839
patch
https://github.com/sezero/mikmod/commit/097b69281fad6ba38a553569e6f55dbfdd71dc2a
technical-description
https://github.com/sezero/mikmod/blob/libmikmod-3.3.13/libmikmod/loaders/load_okt.c#L286
release-notes
https://github.com/sezero/mikmod/blob/libmikmod-3.3.14/libmikmod/NEWS
product
https://github.com/sezero/mikmod
third-party-advisory
https://www.vulncheck.com/advisories/libmikmod-before-3.3.14-heap-buffer-overflow-via-okt-loader-okt-dopbod
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