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TI-2021-01360 Aliases CVE-2021-1643GHSA-3m8h-6gm5-g2hj

HEVC Video Extensions Remote Code Execution Vulnerability

Priority MEDIUM 41Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

HEVC Video Extensions Remote Code Execution Vulnerability

Why it matters now

EPSS 0.04198 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftHEVC Video ExtensionsN/A—No fix listedCNA
  • HEVC Video Extensions VendorMicrosoft Affected N/A Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:hevc_video_extensions:*:*:*:*:*:*:*:*before 1.0.33242.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:hevc_video_extensions:*:*:*:*:*:*:*:* Versions before 1.0.33242.0 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-1643
  2. 2026-10-03 Alias added: GHSA-3m8h-6gm5-g2hj
  3. 2026-10-07 EPSS moved to the 90th–95th percentile

References

Advisory 1

  • TI-2022-12455 HEVC Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2022-11666 HEVC Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2022-11659 HEVC Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2022-08395 HEVC Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2022-06375 HEVC Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2022-06282 HEVC Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
See all 33 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences