Unrated severityNVD Advisory· Published Mar 16, 2023· Updated Jan 16, 2025
CVE-2023-0811
CVE-2023-0811
Description
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 lead to disabling UM protections or setting a non-ASCII password (non-keyboard characters) and preventing an engineer from viewing or modifying the user program.
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Affected products
4- Omron/CJ1M SYSMAC CJ-seriesv5Range: All versions
- Omron/CJ1M SYSMAC CP-seriesv5Range: All versions
- Range: All versions
Patches
Vulnerability mechanics
References
2News mentions
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