CVE-2021-32996
HIGHCVSS 7.5/10EPSS 1.06%
Last modified
CVE-2021-32996 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.06% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fanuc | R-30ia Firmware | 7.20 |
| Fanuc | R-30ia Firmware | 7.30 |
| Fanuc | R-30ia Firmware | 7.40 |
| Fanuc | R-30ia Firmware | 7.43 |
| Fanuc | R-30ia Firmware | 7.50 |
| Fanuc | R-30ia Firmware | 7.63 |
| Fanuc | R-30ia Firmware | 7.70 |
| Fanuc | R-30ia Mate Firmware | 7.20 |
| Fanuc | R-30ia Mate Firmware | 7.30 |
| Fanuc | R-30ia Mate Firmware | 7.40 |
| Fanuc | R-30ia Mate Firmware | 7.43 |
| Fanuc | R-30ia Mate Firmware | 7.50 |
| Fanuc | R-30ia Mate Firmware | 7.63 |
| Fanuc | R-30ia Mate Firmware | 7.70 |
| Fanuc | R-30ib Mate Firmware | 8.10 |
| Fanuc | R-30ib Mate Firmware | 8.13 |
| Fanuc | R-30ib Mate Firmware | 8.20 |
| Fanuc | R-30ib Mate Firmware | 8.23 |
| Fanuc | R-30ib Mate Firmware | 8.26 |
| Fanuc | R-30ib Mate Firmware | 8.30 |
| Fanuc | R-30ib Mate Firmware | 8.33 |
| Fanuc | R-30ib Mate Firmware | 8.36 |
| Fanuc | R-30ib Compact Firmware | 8.10 |
| Fanuc | R-30ib Compact Firmware | 8.13 |
| Fanuc | R-30ib Compact Firmware | 8.20 |
| Fanuc | R-30ib Compact Firmware | 8.23 |
| Fanuc | R-30ib Compact Firmware | 8.26 |
| Fanuc | R-30ib Compact Firmware | 8.30 |
| Fanuc | R-30ib Compact Firmware | 8.33 |
| Fanuc | R-30ib Compact Firmware | 8.36 |
| Fanuc | R-30ib Firmware | 8.10 |
| Fanuc | R-30ib Firmware | 8.13 |
| Fanuc | R-30ib Firmware | 8.20 |
| Fanuc | R-30ib Firmware | 8.23 |
| Fanuc | R-30ib Firmware | 8.26 |
| Fanuc | R-30ib Firmware | 8.30 |
| Fanuc | R-30ib Firmware | 8.33 |
| Fanuc | R-30ib Firmware | 8.36 |
| Fanuc | R-30ib Mate Plus Firmware | 9.10 |
| Fanuc | R-30ib Mate Plus Firmware | 9.13 |
| Fanuc | R-30ib Mate Plus Firmware | 9.16 |
| Fanuc | R-30ib Mate Plus Firmware | 9.30 |
| Fanuc | R-30ib Mate Plus Firmware | 9.36 |
| Fanuc | R-30ib Mate Plus Firmware | 9.40 |
| Fanuc | R-30ib Compact Plus Firmware | 9.10 |
| Fanuc | R-30ib Compact Plus Firmware | 9.13 |
| Fanuc | R-30ib Compact Plus Firmware | 9.16 |
| Fanuc | R-30ib Compact Plus Firmware | 9.30 |
| Fanuc | R-30ib Compact Plus Firmware | 9.36 |
| Fanuc | R-30ib Compact Plus Firmware | 9.40 |
Showing 50 of 62 affected configurations. See NVD for the full list.
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-243-02Third Party Advisory, US Government Resource
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-243-02Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-32996?
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.
How severe is CVE-2021-32996?
CVE-2021-32996 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.
How do I fix CVE-2021-32996?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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