CVE-2021-20023
SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.
- CVSS 3.1
- 4.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - EPSS
- 52% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-25)
- CISA KEV
- listed 2021-11-03, due 2021-11-17, known ransomware use
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- sonicwall:email_security
- sonicwall:email_security_appliance_3300_firmware
- sonicwall:email_security_appliance_4300_firmware
- sonicwall:email_security_appliance_5000_firmware
- sonicwall:email_security_appliance_5050_firmware
- sonicwall:email_security_appliance_7000_firmware
- sonicwall:email_security_appliance_7050_firmware
- sonicwall:email_security_appliance_8300_firmware
- sonicwall:email_security_appliance_9000_firmware
- sonicwall:email_security_virtual_appliance
- sonicwall:hosted_email_security