CVE-2021-47775

HIGH
2026-01-15 [email protected]
8.4
CVSS 3.1
Share

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 16, 2026 - 15:55 vuln.today
Public exploit code
CVE Published
Jan 15, 2026 - 16:16 nvd
HIGH 8.4

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.

Analysis

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. [CVSS 8.4 HIGH]

Technical Context

Classified as CWE-787 (Out-of-bounds Write). 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.

Affected Products

YouTube Video Grabber, now referred to as YouTube Downloader, 1.9.9.1 contains a buffer overflow vulnerability that allows attackers to execute arbitr

Remediation

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible.

Priority Score

62
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +42
POC: +20

Share

CVE-2021-47775 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy