RCE in Visual-Tools Dvr Vx16
CVE-2021-42071
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.699 (99.4th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.699 · newest: 0.699 · change: 0.000
Affected products
- Visual-Tools Dvr Vx16
- Visual-Tools Dvr Vx16 Firmware — versions 4.2.28.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/50098 (Exploit, VDB Entry, Third Party Advisory)
- visual-tools.com/ (Vendor Advisory)
- www.swascan.com/security-advisory-visual-tools-dvr-cve-2021-42071/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-42071?
- CVE-2021-42071 is a critical-severity vulnerability in Visual-Tools Dvr Vx16, classified under OS Command Injection. CVSS score: 9.8/10. Published 2021-10-07.
- How severe is CVE-2021-42071?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-42071 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.