Description
SonicWall Email Security contains an unrestricted upload of file with dangerous type vulnerability that allows a post-authenticated attacker to upload a file to the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20021 and CVE-2021-20023 to achieve privilege escalation.
Recommended action
Apply updates per vendor instructions.
CISA remediation due date for U.S. federal agencies: 17 Nov 2021.
Collected automatically from public sources. Verify affected versions and fixes in the vendor's notice before acting.