CVE-2022-31207 describes a critical lack of cryptographic authentication in Omron SYSMAC Cx series PLCs (CS, CJ, and CP series) when using the Omron FINS protocol for engineering tasks. This flaw allows an unauthenticated attacker to manipulate transmitted object code, potentially executing arbitrary commands on the PLC's ASIC or microprocessor. With a CVSS score of 9.8 (Critical), the vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code, the vulnerability has garnered some community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.1CPE matchmatch criteria | cpe:2.3:o:omron:sysmac_cs1_firmware:*:*:*:*:*:*:*:* | ||
< 2.1CPE matchmatch criteria | cpe:2.3:o:omron:sysmac_cj2m_firmware:*:*:*:*:*:*:*:* | ||
< 1.5CPE matchmatch criteria | cpe:2.3:o:omron:sysmac_cj2h_firmware:*:*:*:*:*:*:*:* | ||
< 1.30CPE matchmatch criteria | cpe:2.3:o:omron:sysmac_cp1e_firmware:*:*:*:*:*:*:*:* | ||
< 1.30CPE matchmatch criteria | cpe:2.3:o:omron:sysmac_cp1h_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.