MKVToolNix vulnerabilities

1 known vulnerability in MKVToolNix from Moritz Bunkus. 1 is rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 7.8 High severity

  MKVToolNix: Integer Overflow to Buffer Overflow

  CVE-2026-90783Sep 13, 2026Moritz Bunkus

  MKVToolNix through 101.0 contains a heap buffer overflow in the bundled avilib library's ODML superindex parser due to integer wraparound in 32-bit arithmetic. Attackers can craft a malicious AVI file with oversized entry counts that cause an undersized heap a