CVE-2020-7881: Afreecatv

High severity, CVSS 8.8. EPSS: 1.4% chance of exploitation in the next 30 days.

The vulnerability function is enabled when the streamer service related to the AfreecaTV communicated through web socket using 21201 port. A stack-based buffer overflow leading to remote code execution was discovered in strcpy() operate by "FanTicket" field. It is because of stored data without validation of length.

Affected products

Published 2021-11-26. Last modified 2026-06-17.