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TI-2021-11954 Aliases CVE-2021-31967GHSA-h532-f87j-947q

VP9 Video Extensions Remote Code Execution Vulnerability

Priority MEDIUM 45Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

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

Summary

VP9 Video Extensions Remote Code Execution Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0253 85th percentileScored 2026-11-07
Fix Fixed VP9 Video Extensions (Microsoft): 1.0.41182.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftVP9 Video Extensions1.0.0.0 to before 1.0.41182.01.0.41182.0Patch availableCNA
  • VP9 Video Extensions VendorMicrosoft Affected 1.0.0.0 to before 1.0.41182.0 Fixed in 1.0.41182.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:vp9_video_extensions:*:*:*:*:*:*:*:*before 1.0.41182.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:vp9_video_extensions:*:*:*:*:*:*:*:* Versions before 1.0.41182.0 Vulnerable ·Microsoft

Remediation

  • Fix · CNA VP9 Video Extensions (Microsoft) Fixed in 1.0.41182.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-31967
  2. 2026-10-03 Alias added: GHSA-h532-f87j-947q

References

Patch 1

  • TI-2022-08368 VP9 Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2022-08321 VP9 Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2022-06960 VP9 Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2021-09577 VP9 Video Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2023-18660 VP9 Video Extensions Information Disclosure Vulnerability CVSS 3.1MEDIUM 5.5
  • TI-2021-19250 VP9 Video Extensions Information Disclosure Vulnerability CVSS 3.1MEDIUM 5.5

Sources

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