---
cve: "CVE-2026-105839"
severity: "HIGH"
cvss: 8.5
epss: ""
vendor: "sezero"
kev: false
exploited: false
published: "2026-10-06 14:17:41"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-09T10:34:20+02:00"
---

# CVE-2026-105839

> 8.5 HIGH · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-10-06 16:12:22
- CNA-CVSS: **8.5** (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- 8de19eef766d9ba30a74c19e566edfcd61851dba (Commit)
- 097b69281fad6ba38a553569e6f55dbfdd71dc2a (Commit)

## Referenzen

- <https://github.com/sezero/mikmod/commit/097b69281fad6ba38a553569e6f55dbfdd71dc2a>
- <https://github.com/sezero/mikmod/blob/libmikmod-3.3.13/libmikmod/loaders/load_okt.c#L286>
- <https://github.com/sezero/mikmod/blob/libmikmod-3.3.14/libmikmod/NEWS>
- <https://github.com/sezero/mikmod>
- <https://www.vulncheck.com/advisories/libmikmod-before-3.3.14-heap-buffer-overflow-via-okt-loader-okt-dopbod>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-105839/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_