CVE-2021-33820 is a denial-of-service vulnerability affecting UniFi Protect G3 FLEX Cameras running firmware version UVC.v4.30.0.67. An unauthenticated attacker can exhaust the web service's resources by flooding it with TCP SYN packets, rendering the device inaccessible. This vulnerability has a CVSS score of 7.5 (High) due to its network-based attack vector and high impact on availability, with low attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
uvc.v4.30.0.67CPE matchmatch criteria | cpe:2.3:o:ui:camera_g3_flex_firmware:uvc.v4.30.0.67:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.