CVE-2022-45790

Omron FINS memory protection susceptible to bruteforce

8.6 High

The Omron FINS protocol has an authenticated feature to prevent access to memory regions. Authentication is susceptible to bruteforce attack, which may allow an adversary to gain access to protected memory. This access can allow overwrite of values including programmed logic.

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: None
Integrity: High
Availability: None

Exploit likelihood

0.91%Up 0.9 points since Jan 24, 2024

What each source reports

CVE List Score used 8.6

Omron FINS memory protection susceptible to bruteforce

Record: CVE-2022-45790
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Weakness: CWE-307
Updated: 2026-11-02

EUVDEUVD-2022-48646 8.6

Record: EUVD-2022-48646
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-c7q6-prxw-fgx7 8.6

The Omron FINS protocol has an authenticated feature to prevent access to memory regions....

Record: GHSA-c7q6-prxw-fgx7
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Weakness: CWE-307
Updated: 2026-11-02

NVD 8.6

Record: CVE-2022-45790
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-307
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

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

In short

CVE-2022-45790 is a high vulnerability (CVSS 8.6) in Omron Cj-series And Cs-series Cpu Modules, published January 22, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.91%, the 59th percentile. No source names a fixed version.