CISA Known Exploited Vulnerability
This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.
Remediation Deadline: Nov 17, 2021
Description
SonicWall Email Security contains an improper privilege management vulnerability that allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20022 and CVE-2021-20023 to achieve privilege escalation.
EPSS — Exploit Probability
91.7%
Higher than 99.7% of all CVEs
Required Action
https://nvd.nist.gov/vuln/detail/CVE-2021-20021
Risk Assessment
CRITICALIn CISA KEV
High EPSS
Ransomware
Details
- Severity
- High
- EPSS
- 91.7%
- CISA KEV
- Yes
- Ransomware
- Known
- Articles
- 0
Timeline
Published
Nov 3, 2021
Added to KEV
Nov 3, 2021
Remediation Due
Nov 17, 2021