Is CVE-2022-4991 actively exploited?

No active exploitation of CVE-2022-4991 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-4991 be exploited remotely?

Yes. CVE-2022-4991 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-4991?

CVE-2022-4991 has a CVSS score of 7.4 (HIGH).

HOME VULNERABILITIESCVE-2022-4991

HIGH

CVE-2022-4991

Published: June 1, 2026· Updated: Jun 2, 2026

7.4

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.9th

Official Description

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.

NVD Source

Technical Analysis

CVE-2022-4991 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 7.4.