CVE-2021-47799

Visual Tools DVR VX16 4.2.28 - Local Privilege Escalation

Published Jan 15, 2026 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:h:visual-tools:dvr_vx16:isual:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Visual-tools
Visual-tools dvr Vx16
Visual-tools dvr Vx16 Firmware
Vendors & Products Visual-tools
Visual-tools dvr Vx16
Visual-tools dvr Vx16 Firmware
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Visual Tools DVR VX16 4.2.28 - Local Privilege Escalation
Weaknesses CWE-266
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jul 28, 2026, 1:47 AM
Reserved
Jan 14, 2026, 2:39 PM
Status
Deferred
Published
Jan 15, 2026, 4:16 PM
Modified
Jun 17, 2026, 4:18 AM