CVE-2018-18826: Libav

Medium severity, CVSS 6.5. EPSS: 0.9% chance of exploitation in the next 30 days.

There exists a heap-based buffer overflow in vc1_decode_p_mb_intfi in vc1_block.c in Libav 12.3, which allows attackers to cause a denial-of-service via a crafted aac file.

Affected products

• Libav Libav: version 12.3 only

Published 2018-10-30. Last modified 2026-06-17.