How severe is CVE-2020-7561?

CVE-2020-7561 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-7561 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7561?

CVE-2020-7561 affects Schneider-electric Easergy T300 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7561?

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

When was CVE-2020-7561 published?

CVE-2020-7561 was published on 2020-11-19 and last updated on 2026-06-17.

CVE-2020-7561

CVE-2020-7561 is a critical-severity vulnerability in Schneider-electric Easergy T300 Firmware with a CVSS 3.x base score of 9.8. 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-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Schneider-electric Easergy T300 Firmware
Published: 2020-11-19
Last modified: 2026-06-17

Description

A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T300 (with firmware 2.7 and older) that could cause a wide range of problems, including information exposure, denial of service, and command execution when access to a resource from an attacker is not restricted or incorrectly restricted.

Frequently asked questions

What is CVE-2020-7561?: A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T300 (with firmware 2.7 and older) that could cause a wide range of problems, including information exposure, denial of service, and command execution when access to a resource from an attacker is not restricted or incorrectly restricted.
How severe is CVE-2020-7561?: CVE-2020-7561 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-7561 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7561?: CVE-2020-7561 affects Schneider-electric Easergy T300 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7561?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-7561 published?: CVE-2020-7561 was published on 2020-11-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:schneider-electric:easergy_t300_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Schneider-electric Easergy T300 Firmware

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