How severe is CVE-2021-22770?

CVE-2021-22770 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-22770 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22770?

CVE-2021-22770 affects Schneider-electric Easergy T300 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22770?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-22770 published?

CVE-2021-22770 was published on 2021-07-21 and last updated on 2026-06-17.

CVE-2021-22770

CVE-2021-22770 is a medium-severity vulnerability in Schneider-electric Easergy T300 Firmware with a CVSS 3.x base score of 6.5. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Schneider-electric Easergy T300 Firmware
Published: 2021-07-21
Last modified: 2026-06-17

Description

A CWE-200: Information Exposure vulnerability exists in Easergy T300 with firmware V2.7.1 and older that exposes sensitive information to an actor not explicitly authorized to have access to that information.

Frequently asked questions

What is CVE-2021-22770?: A CWE-200: Information Exposure vulnerability exists in Easergy T300 with firmware V2.7.1 and older that exposes sensitive information to an actor not explicitly authorized to have access to that information.
How severe is CVE-2021-22770?: CVE-2021-22770 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-22770 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22770?: CVE-2021-22770 affects Schneider-electric Easergy T300 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22770?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22770 published?: CVE-2021-22770 was published on 2021-07-21 and last updated on 2026-06-17.

References

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-02

Affected products (1)

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

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