CVE-2021-32996: Fanuc R-30ia Firmware

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

The FANUC R-30iA and R-30iB series controllers are vulnerable to integer coercion errors, which cause the device to crash. A restart is required.

Affected products

• Fanuc R-30ia Firmware: version 7.20 only; version 7.30 only; version 7.40 only; version 7.43 only; version 7.50 only; version 7.63 only; …
• Fanuc R-30ia Mate Firmware: version 7.20 only; version 7.30 only; version 7.40 only; version 7.43 only; version 7.50 only; version 7.63 only; …
• Fanuc R-30ib Compact Firmware: version 8.10 only; version 8.13 only; version 8.20 only; version 8.23 only; version 8.26 only; version 8.30 only; …
• Fanuc R-30ib Compact Plus Firmware: version 9.10 only; version 9.13 only; version 9.16 only; version 9.30 only; version 9.36 only; version 9.40 only
• Fanuc R-30ib Firmware: version 8.10 only; version 8.13 only; version 8.20 only; version 8.23 only; version 8.26 only; version 8.30 only; …
• Fanuc R-30ib Mate Firmware: version 8.10 only; version 8.13 only; version 8.20 only; version 8.23 only; version 8.26 only; version 8.30 only; …
• Fanuc R-30ib Mate Plus Firmware: version 9.10 only; version 9.13 only; version 9.16 only; version 9.30 only; version 9.36 only; version 9.40 only
• Fanuc R-30ib Mini Plus Firmware: version 9.10 only; version 9.13 only; version 9.16 only; version 9.30 only; version 9.36 only; version 9.40 only
• Fanuc R-30ib Plus Firmware: version 9.10 only; version 9.13 only; version 9.16 only; version 9.30 only; version 9.36 only; version 9.40 only

Published 2022-01-10. Last modified 2026-06-17.