CVE-2021-33778 is a Remote Code Execution vulnerability affecting Microsoft HEVC Video Extensions. With a CVSS score of 7.8 (HIGH), it allows an attacker to execute arbitrary code on a vulnerable system if a user is tricked into opening a specially crafted file. While the vulnerability has a high potential impact (confidentiality, integrity, and availability), there is no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed on CISA's KEV catalog. Community discussion and media coverage are minimal, suggesting limited public awareness or active exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.0.41531.0CPE matchmatch criteria | cpe:2.3:a:microsoft:hevc_video_extensions:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.