What’s Vulnerable › Vulnerabilities

CVE-2020-7881: AfreecaTV streamer service stack-based buffer overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-26 · updated 2026-06-17
• Weakness: CWE-190

Description

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

• afreecatvstreamer.exe: 1.0.0.1

References

• https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357
• https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357

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