CVE-2023-52339: Matroska Libebml

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

In libebml before 1.4.5, an integer overflow in MemIOCallback.cpp can occur when reading or writing. It may result in buffer overflows.

Affected products

• Matroska Libebml: before 1.4.5 (fixed in 1.4.5)

Published 2024-01-12. Last modified 2026-06-17.