CVE-2021-47799

MEDIUM

Visual Tools DVR VX16 <4.2.28 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47799. PoCs published by Andrea D\'Ubaldo.

AI-analyzed exploit summary This exploit abuses an unsafe Sudo configuration in Visual Tools DVR VX16 4.2.28 to perform a local privilege escalation by binding /bin/sh to /bin/mount and then executing it with sudo.

Description

Visual Tools DVR VX16 version 4.2.28 contains a local privilege escalation vulnerability in its Sudo configuration that allows attackers to gain root access. Attackers can exploit the unsafe Sudo settings by using mount commands to bind a shell, enabling unauthorized system-level privileges.

Exploits (1)

exploitdb WORKING POC
by Andrea D\'Ubaldo · textwebappshardware
https://www.exploit-db.com/exploits/50104

This exploit abuses an unsafe Sudo configuration in Visual Tools DVR VX16 4.2.28 to perform a local privilege escalation by binding /bin/sh to /bin/mount and then executing it with sudo.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Trivial
Reliability
Reliable
Target: Visual Tools DVR VX16 v4.2.28.0
Auth required
Prerequisites: Local access to the system · Sudo privileges to run 'mount'
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/50104
Various Sources product
https://visual-tools.com/

Scores

CVSS v3 6.2
EPSS 0.0013
EPSS Percentile 2.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-266
Status published
Published Jan 15, 2026
Tracked Since Feb 18, 2026