Vulnerability · Published Jan 15, 2026 · Assigned by VulnCheck

CVE-2021-47775YouTube Video Grabber 1.9.9.1 - Buffer Overflow (SEH)

High 8.4

In plain English

A high-severity out-of-bounds write in YouTube Video Grabber from Litexmedia. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)8.4High
Exploit odds (30 days)0.2%top 93.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Litexmedia YouTube Video Grabber 1.9.9.1

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References