What is CVE-2022-4991?

CVE-2022-4991 is a high-severity vulnerability in Tychon, classified under Improper Access Control. CVSS score: 7.4/10. Published 2026-06-01.

How severe is CVE-2022-4991?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Tychon

CVE-2022-4991

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…

EPSS: 0.000 (15.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Tychon

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

cret@cert.org

Frequently asked questions

What is CVE-2022-4991?: CVE-2022-4991 is a high-severity vulnerability in Tychon, classified under Improper Access Control. CVSS score: 7.4/10. Published 2026-06-01.
How severe is CVE-2022-4991?: High severity. CVSS v3 base score is 7.4 out of 10.