CVE-2021-43243
VP9 Video Extensions Information Disclosure Vulnerability
MEDIUM
5.5
CVSS Score
Published: December 15, 2021 at 02:15 PM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorVP9 Video Extensions
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit
Description
VP9 Video Extensions Information Disclosure Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43243SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
5.5MEDIUMmicrosoft
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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