CVE-2023-22339

Improper access control vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows...

7.5 High

Improper access control vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthenticated attacker to bypass access restriction and obtain the server certificate including the private key of the product.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

1.19%Up 0.1 points since Jan 20, 2023

What each source reports

NVD Score used 7.5

Record: CVE-2023-22339
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-284
Updated: 2026-11-02

CVE List 7.5

Record: CVE-2023-22339
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-284
Updated: 2026-11-02

EUVDEUVD-2023-26502 7.5

Record: EUVD-2023-26502
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-r659-h3gg-4vrp 7.5

Improper access control vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows...

Record: GHSA-r659-h3gg-4vrp
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-284
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-22339 is a high vulnerability (CVSS 7.5) in Contec Conprosys Hmi System, published January 20, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.19%, the 68th percentile. No source names a fixed version.