What’s Vulnerable › Vulnerabilities

CVE-2020-21723

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-08-22 · updated 2026-06-17
• Weakness: CWE-787

Description

A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.

Affected products

• Ogg Video Tools Project Ogg Video Tools: 0.9.1

References

• https://github.com/xiaoxiongwang/security/tree/master/oggvideotools#segv-occurs-in-function-streamserializerextractstreams-in-streamserializercpp
• https://sourceforge.net/p/oggvideotools/bugs/10/
• https://github.com/xiaoxiongwang/security/tree/master/oggvideotools#segv-occurs-in-function-streamserializerextractstreams-in-streamserializercpp
• https://sourceforge.net/p/oggvideotools/bugs/10/

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