A denial-of-service vulnerability in the Fanuc i Series CNC (0i-MD and 0i Mate-MD) could…
Priority LOW 28CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
A denial-of-service vulnerability in the Fanuc i Series CNC (0i-MD and 0i Mate-MD) could allow an unauthenticated, remote attacker to cause an affected CNC to become inaccessible to other devices.
Why it matters now
EPSS 0.01949 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 32
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fanuc:series_30i_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_30i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_31i_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_31i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_32i-b_plus_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_32i-b_plus:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_35i-b_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_35i-b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:power_motion_i-model_a_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:power_motion_i-model_a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
- cpe:2.3:o:fanuc:series_30i_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_30i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_31i_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_31i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_32i-b_plus_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_32i-b_plus:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_35i-b_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_35i-b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:power_motion_i-model_a_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:power_motion_i-model_a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
Show 22 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fanuc:series_0i-model_f_plus_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_0i-model_f_plus:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_0i-model_f_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_0i-model_f:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_32i-model_a_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_32i-model_a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_0i-model_d_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_0i-model_d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_0i-mate_d_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_0i-mate_d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_0i-model_c_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_0i-model_c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_16i_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_16i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_18i_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_18i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_21i-model_b_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_21i-model_b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_0i-model_b_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_0i-model_b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
| cpe:2.3:o:fanuc:series_18i-wb_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | FANUC |
| cpe:2.3:h:fanuc:series_18i-wb:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FANUC |
- cpe:2.3:o:fanuc:series_0i-model_f_plus_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_0i-model_f_plus:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_0i-model_f_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_0i-model_f:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_32i-model_a_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_32i-model_a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_0i-model_d_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_0i-model_d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_0i-mate_d_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_0i-mate_d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_0i-model_c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_0i-model_c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_16i_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_16i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_18i_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_18i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_21i-model_b_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_21i-model_b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_0i-model_b_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_0i-model_b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
- cpe:2.3:o:fanuc:series_18i-wb_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·FANUC
- cpe:2.3:h:fanuc:series_18i-wb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FANUC
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12739
- 2026-10-03 Alias added: GHSA-qrgc-2qmf-qw4g
References
Sources
- CVE-2020-12739 · CVE Program
- CVE-2020-12739 · NVD
- FIRST EPSS
- GHSA-qrgc-2qmf-qw4g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences