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
- Omron Cj1m Sysmac Cj-series — versions All versions
- Omron Cj1m Sysmac Cp-series — versions All versions
- Omron Cj1m Sysmac Cs-series — versions All versions
- Omron Sysmac_cj2h-cpu64
- Omron Sysmac_cj2h-cpu64-eip
- Omron Sysmac_cj2h-cpu64-eip_firmware
- Omron Sysmac_cj2h-cpu64_firmware
- Omron Sysmac_cj2h-cpu65
- Omron Sysmac_cj2h-cpu65-eip
- Omron Sysmac_cj2h-cpu65-eip_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory)
- ics-cert@hq.dhs.gov (Mitigation, Vendor Advisory)
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.