High severity · published Jul 14, 2021
CVE-2021-31947
HEVC Video Extensions Remote Code Execution Vulnerability
7.8
CVSS
2.5%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.5% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HV
Hevc Video Extensions · Microsoft
before 1.0.41531.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31947
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31947
msrc.microsoft.com
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31947
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31947
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