Vulnerability in Omron Cj1m Sysmac Cj-series

CVE-2023-0811

Omron CJ1M unit v4.0 and prior has improper access controls on the memory region where the UM password is stored. If an adversary issues a PROGRAM AREA WRITE command to a specific memory region, they could overwrite the password. This may…

EPSS: 0.006 (45.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-0811?
CVE-2023-0811 is a critical-severity vulnerability in Omron Cj1m Sysmac Cj-series, classified under Improper Access Control. CVSS score: 9.1/10. Published 2023-03-16.
How severe is CVE-2023-0811?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2023-0811 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.