Vendor / Project: SonicWall Product: SonicWall Email Security Description: SonicWall Email Security contains a path traversal vulnerability that allows a post-authenticated attacker to read files on the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20021 and CVE-2021-20022 to achieve privilege escalation. Required Action: Apply updates per vendor instructions. Due Date: 2021-11-17 Ransomware Campaign Use: Known CWEs: CWE-22 Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-20023