SecurEnvoy SecurMail 9.3.503 allows attackers to upload executable files and achieve OS command execution via a crafted SecurEnvoyReply cookie.
https://www.securenvoy.com/en-gb/support
https://sidechannel.tempestsi.com/path-traversal-vulnerability-in-securenvoy-impacts-on-remote-command-execution-through-file-upload-ec2e731bd50a
Source: Mitre, NVD
Published: 2020-08-07
Updated: 2026-06-17
Base Score: 9.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 9
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Severity: Critical
EPSS: 0.0137