High Severity Vulnerability
This vulnerability has been rated as High severity. Immediate action is recommended.
CVE-2021-47775
High
Low
Medium
High
Critical
8.4
CVSS Score
Published: Jan 15, 2026
Last Modified: Jan 15, 2026
Vulnerability Description
YouTube Video Grabber, now referred to as YouTube Downloader, 1.9.9.1 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by overwriting the Structured Exception Handler. Attackers can craft a malicious payload of 712 bytes with SEH manipulation to trigger a bind shell connection on a specified local port.
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
L
Attack Complexity
L
Privileges Required
N
User Interaction
N
Scope
U
Confidentiality
H
Integrity
H
Availability
H
Severity Details
8.4
out of 10.0
High
Key Information
- Published Date
- January 15, 2026
