Zero-day vulnerability in Kaseya VSA

Input validation error

Not patched

Known malware:


Vulnerability details

Advisory: SB2021070501 - Remote code execution in Kaseya VSA

Vulnerable component: Kaseya VSA

CVE-ID: CVE-2021-30116

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C

CWE-ID: CWE-20 - Improper input validation


The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to unspecified error. A remote attacker can compromise the affected system.

Note, the vulnerability is being actively exploited in the wild by the REvil ransomware.

External links: