In Visual Tools DVR VX16 4.2.28.0, an unauthenticated attacker can achieve remote command…
Priority HIGH 79CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
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.
Why it matters now
EPSS 0.69882 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:visual-tools:dvr_vx16_firmware:4.2.28.0:*:*:*:*:*:*:* | 4.2.28.0 | Vulnerable | Visual-Tools |
| cpe:2.3:h:visual-tools:dvr_vx16:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Visual-Tools |
- cpe:2.3:o:visual-tools:dvr_vx16_firmware:4.2.28.0:*:*:*:*:*:*:* Versions 4.2.28.0 Vulnerable ·Visual-Tools
- cpe:2.3:h:visual-tools:dvr_vx16:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Visual-Tools
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-42071
- 2026-10-03 Alias added: GHSA-5pjx-33j8-9h49
References
Sources
- CVE-2021-42071 · CVE Program
- CVE-2021-42071 · NVD
- FIRST EPSS
- GHSA-5pjx-33j8-9h49 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences