CVE-2021-42071
CRITICAL
9.8
CVSS Score
Published: October 7, 2021 at 04:15 PM UTC
Updated: June 17, 2026 at 04:09 AM UTC
2 products affected across 1 vendorDVR VX16 FirmwareVisual Tools DVR VX16
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Severity
CRITICAL9.8
Exploit prediction
EPSS 70%
Description
In Visual Tools DVR VX16 4.2.28.0, an unauthenticated attacker can achieve remote command execution via shell metacharacters in the cgi-bin/slogin/login.py User-Agent HTTP header.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
80%
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
https://www.exploit-db.com/exploits/50098x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.swascan.com/security-advisory-visual-tools-dvr-cve-2021-42071/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-78
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