CVE-2021-20022: SonicWall Email Security Unrestricted Upload of File
SonicWall Email Security Unrestricted Upload of File Vulnerability. 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.
- CISA KEV-listed (remediation due 2021-11-17)
- used in ransomware campaigns
- EPSS 32.6% (97.0% percentile)