How severe is CVE-2022-43377?

CVE-2022-43377 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 high, integrity none, and availability none.

Is CVE-2022-43377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43377?

CVE-2022-43377 primarily affects Schneider-electric Netbotz 355 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-43377?

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-2022-43377 published?

CVE-2022-43377 was published on 2023-04-18 and last updated on 2026-06-17.

CVE-2022-43377

CVE-2022-43377 is a high-severity vulnerability in Schneider-electric Netbotz 355 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-307.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-307
Affected product: Schneider-electric Netbotz 355 Firmware
Published: 2023-04-18
Last modified: 2026-06-17

Description

A CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could cause account takeover when a brute force attack is performed on the account. Affected Products: NetBotz 4 - 355/450/455/550/570 (V4.7.0 and prior)

Frequently asked questions

What is CVE-2022-43377?: A CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could cause account takeover when a brute force attack is performed on the account. Affected Products: NetBotz 4 - 355/450/455/550/570 (V4.7.0 and prior)
How severe is CVE-2022-43377?: CVE-2022-43377 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 high, integrity none, and availability none.
Is CVE-2022-43377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43377?: CVE-2022-43377 primarily affects Schneider-electric Netbotz 355 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-43377?: 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-2022-43377 published?: CVE-2022-43377 was published on 2023-04-18 and last updated on 2026-06-17.

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-312-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2022-312-01-NetBotz_4_Security_Notification.pdf

Affected products (5)

cpe:2.3:o:schneider-electric:netbotz_355_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:netbotz_450_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:netbotz_455_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:netbotz_550_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:netbotz_570_firmware:*:*:*:*:*:*:*:*

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