CVE-2021-42071

CRITICAL 9.8CVE-2021-42071 · Published 07/10/2021 · updated 17/06/2026

In short

CVE-2021-42071 is a CRITICAL (CVSS 9.8) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 69.9%, higher than 99.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

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.

References

visual-tools.com · Vendor Advisory
exploit-db.com/exploits/50098 · Exploit
swascan.com/security-advisory-visual-tools-dvr-cve-2021-42071 · Exploit

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