How severe is CVE-2020-7486?

CVE-2020-7486 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-7486 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7486?

CVE-2020-7486 primarily affects Schneider-electric Tricon Tcm 4351 Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-7486?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-7486 published?

CVE-2020-7486 was published on 2020-04-16 and last updated on 2026-06-17.

CVE-2020-7486

CVE-2020-7486 is a high-severity vulnerability in Schneider-electric Tricon Tcm 4351 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Schneider-electric Tricon Tcm 4351 Firmware
Published: 2020-04-16
Last modified: 2026-06-17

Description

**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.

Frequently asked questions

What is CVE-2020-7486?: **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.
How severe is CVE-2020-7486?: CVE-2020-7486 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-7486 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7486?: CVE-2020-7486 primarily affects Schneider-electric Tricon Tcm 4351 Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-7486?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-7486 published?: CVE-2020-7486 was published on 2020-04-16 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:o:schneider-electric:tricon_tcm_4351_firmware:10.3.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4351_firmware:10.4.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4352_firmware:10.3.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4352_firmware:10.4.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4351a_firmware:10.3.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4351a_firmware:10.4.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4351b_firmware:10.3.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4351b_firmware:10.4.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4352a_firmware:10.3.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4352a_firmware:10.4.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4352b_firmware:10.3.x:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tricon_tcm_4352b_firmware:10.4.x:*:*:*:*:*:*:*

More vulnerabilities in Schneider-electric Tricon Tcm 4351 Firmware

CVE-2020-7491 — High (CVSS 7.5): **VERSION NOT SUPPORTED WHEN ASSIGNED** A legacy debug port account in TCMs installed in Tricon system versions 10.2.0…

All CVEs affecting Schneider-electric Tricon Tcm 4351 Firmware →

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →