CVE-2022-21917
High
Published: 11 January 2022
Published
11 January 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0370
88.2th percentile
Risk Priority
18
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2022-21917 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Microsoft Hevc Video Extensions. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 11.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-27073
Vulnerability details
HEVC Video Extensions Remote Code Execution Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
microsoft
hevc video extensions
≤ 1.0.43421.0
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
addresses: CWE-787
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.