What’s Vulnerable › Vulnerabilities

CVE-2021-40452: HEVC Video Extensions Remote Code Execution Vulnerability

• Severity: medium (CVSS 6.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-15 · updated 2026-06-17

Description

HEVC Video Extensions Remote Code Execution Vulnerability

Affected products

• Microsoft HEVC Video Extensions: all versions
• Microsoft HEVC Video Extensions: all versions

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40452
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40452

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