CVE-2022-4991

Tychon is vulnerable to privilege escalation due to OPENSSLDIR location

High · published June 1, 2026

CVSS v3.1
7.4
EPSS
0%
Percentile
16.0
In the wild
Unconfirmed
What it is

Tychon includes an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory that may be controllable by an unprivileged user on Windows. Tychon contains a privileged service that uses this OpenSSL component. A user who can place a specially-crafted openssl.cnf file at an appropriate path may be able to achieve arbitrary code execution with SYSTEM privileges.

The record
Technical detail
CVSS v3.1
7.4 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00254 · 16.0th percentile
Published
2026-06-01T15:49Z
EPSS history
Timeline
  • 01 JUN 15:49Z
    Tychon is vulnerable to privilege escalation due to OPENSSLDIR location
    cvelistv5