Uncontrolled resource consumption in Tricon TCM Model 4351, 4352, 4351A/B, 4352A/B
Priority LOW 36CWE-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 · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
**VERSION NOT SUPPORTED WHEN ASSIGNED** A vulnerability could cause TCM modules to reset when under high network load in TCM v10.4.x and in system v10.3.x. This vulnerability was discovered and remediated in version v10.5.x on August 13, 2009. TCMs from v10.5.x and on will no longer exhibit this behavior.
Why it matters now
EPSS 0.01639 76th 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 |
|---|---|---|---|---|---|
| — | Tricon TCM Model 4351, 4352, 4351A/B, 4352A/B (v10.3.x, v10.4.x) | Tricon TCM Model 4351, 4352, 4351A/B, 4352A/B (v10.3.x, v10.4.x) | — | No fix listed | CNA |
- Tricon TCM Model 4351, 4352, 4351A/B, 4352A/B (v10.3.x, v10.4.x) Vendor— Affected Tricon TCM Model 4351, 4352, 4351A/B, 4352A/B (v10.3.x, v10.4.x) Fixed in — No fix listed CNA
CPE configurations NVD · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:tricon_tcm_4351_firmware:10.3.x:*:*:*:*:*:*:* | 10.3.x | Vulnerable | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4351_firmware:10.4.x:*:*:*:*:*:*:* | 10.4.x | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:tricon_tcm_4351:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4352_firmware:10.3.x:*:*:*:*:*:*:* | 10.3.x | Vulnerable | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4352_firmware:10.4.x:*:*:*:*:*:*:* | 10.4.x | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:tricon_tcm_4352:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4351a_firmware:10.3.x:*:*:*:*:*:*:* | 10.3.x | Vulnerable | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4351a_firmware:10.4.x:*:*:*:*:*:*:* | 10.4.x | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:tricon_tcm_4351a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4351b_firmware:10.3.x:*:*:*:*:*:*:* | 10.3.x | Vulnerable | Schneider Electric |
- cpe:2.3:o:schneider-electric:tricon_tcm_4351_firmware:10.3.x:*:*:*:*:*:*:* Versions 10.3.x Vulnerable ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4351_firmware:10.4.x:*:*:*:*:*:*:* Versions 10.4.x Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:tricon_tcm_4351:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4352_firmware:10.3.x:*:*:*:*:*:*:* Versions 10.3.x Vulnerable ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4352_firmware:10.4.x:*:*:*:*:*:*:* Versions 10.4.x Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:tricon_tcm_4352:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4351a_firmware:10.3.x:*:*:*:*:*:*:* Versions 10.3.x Vulnerable ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4351a_firmware:10.4.x:*:*:*:*:*:*:* Versions 10.4.x Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:tricon_tcm_4351a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4351b_firmware:10.3.x:*:*:*:*:*:*:* Versions 10.3.x Vulnerable ·Schneider Electric
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:tricon_tcm_4351b_firmware:10.4.x:*:*:*:*:*:*:* | 10.4.x | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:tricon_tcm_4351b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4352a_firmware:10.3.x:*:*:*:*:*:*:* | 10.3.x | Vulnerable | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4352a_firmware:10.4.x:*:*:*:*:*:*:* | 10.4.x | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:tricon_tcm_4352a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4352b_firmware:10.3.x:*:*:*:*:*:*:* | 10.3.x | Vulnerable | Schneider Electric |
| cpe:2.3:o:schneider-electric:tricon_tcm_4352b_firmware:10.4.x:*:*:*:*:*:*:* | 10.4.x | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:tricon_tcm_4352b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:tricon_tcm_4351b_firmware:10.4.x:*:*:*:*:*:*:* Versions 10.4.x Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:tricon_tcm_4351b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4352a_firmware:10.3.x:*:*:*:*:*:*:* Versions 10.3.x Vulnerable ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4352a_firmware:10.4.x:*:*:*:*:*:*:* Versions 10.4.x Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:tricon_tcm_4352a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4352b_firmware:10.3.x:*:*:*:*:*:*:* Versions 10.3.x Vulnerable ·Schneider Electric
- cpe:2.3:o:schneider-electric:tricon_tcm_4352b_firmware:10.4.x:*:*:*:*:*:*:* Versions 10.4.x Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:tricon_tcm_4352b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-7486
- 2026-10-03 Alias added: GHSA-vxcj-679q-r6q8
References
More Schneider Electric Tricon Tcm 4351 Firmware vulnerabilities
- TI-2020-06014 **VERSION NOT SUPPORTED WHEN ASSIGNED** A legacy debug port account in TCMs installed in… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-7486 · CVE Program
- CVE-2020-7486 · NVD
- FIRST EPSS
- GHSA-vxcj-679q-r6q8 · 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