CVE-2021-20022: 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. Required action: Apply updates per vendor instructions.
· high severity · unattributed attribution
Evidence and provenance
- Original source
- CISA KEV report ↗
- Published
- 2021-11-03T00:00:00Z
- Confidence basis
- No actor match
- Record ID
1c9ed154fb1d3e4fef33
Vulnerabilities
CVE-2021-20021, CVE-2021-20022, CVE-2021-20023
Use and citation
Verify the original report before making operational decisions. Cite this permanent page together with the original source, publication date, confidence level, and review status.